UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM N-CSR

   CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES

                  Investment Company Act file number 811-04873
                                                    -----------

                              The GAMCO Growth Fund
            -------------------------------------------------------
               (Exact name of registrant as specified in charter)

                              One Corporate Center
                            Rye, New York 10580-1422
            -------------------------------------------------------
               (Address of principal executive offices) (Zip code)

                                 Bruce N. Alpert
                               Gabelli Funds, LLC
                              One Corporate Center
                            Rye, New York 10580-1422
            -------------------------------------------------------
                     (Name and address of agent for service)

       registrant's telephone number, including area code: 1-800-422-3554
                                                          ---------------

                      Date of fiscal year end: December 31
                                              ------------
                   Date of reporting period: December 31, 2007
                                            ------------------


Form N-CSR is to be used by management investment companies to file reports with
the Commission not later than 10 days after the  transmission to stockholders of
any report that is required to be transmitted to  stockholders  under Rule 30e-1
under the Investment Company Act of 1940 (17 CFR 270.30e-1).  The Commission may
use the information provided on Form N-CSR in its regulatory, disclosure review,
inspection, and policymaking roles.

A registrant  is required to disclose the  information  specified by Form N-CSR,
and the  Commission  will make this  information  public.  A  registrant  is not
required to respond to the  collection  of  information  contained in Form N-CSR
unless the Form  displays a  currently  valid  Office of  Management  and Budget
("OMB")  control number.  Please direct comments  concerning the accuracy of the
information  collection  burden  estimate and any  suggestions  for reducing the
burden to  Secretary,  Securities  and Exchange  Commission,  100 F Street,  NE,
Washington,  DC 20549. The OMB has reviewed this collection of information under
the clearance requirements of 44 U.S.C. ss. 3507.







ITEM 1. REPORTS TO STOCKHOLDERS.

The Report to Shareholders is attached herewith.


                              THE GAMCO GROWTH FUND

                                  ANNUAL REPORT
                               DECEMBER 31, 2007


TO OUR SHAREHOLDERS,

      The Sarbanes-Oxley Act requires a fund's principal executive and financial
officers  to  certify  the  entire   contents  of  the  semi-annual  and  annual
shareholder  reports in a filing with the Securities and Exchange  Commission on
Form N-CSR. This certification  would cover the portfolio  manager's  commentary
and  subjective  opinions  if they are  attached  to or a part of the  financial
statements. Many of these comments and opinions would be difficult or impossible
to certify.

      Because we do not want our portfolio  managers to eliminate their opinions
and/or  restrict their  commentary to historical  facts, we have separated their
commentary from the financial  statements and investment portfolio and have sent
it to  you  separately.  Both  the  commentary  and  the  financial  statements,
including  the  portfolio  of  investments,  will be available on our website at
www.gabelli.com/funds.

      Enclosed are the audited financial statements and the investment portfolio
as of  December  31,  2007 with a  description  of  factors  that  affected  the
performance during the past year.


PERFORMANCE DISCUSSION (UNAUDITED)

      For the 12 months ended  December 31, 2007,  the Fund (Class AAA) returned
18.13%  compared to 11.81% for the Russell  1000 Growth  Index and 5.49% for the
Standard & Poor's 500 Stock Index. It was the first year since 1999 during which
Growth Funds outperformed  Value Funds,  according to Lipper. It was a year that
saw  credit  market   problems  drag  down  many   financial   service   stocks.
Underweighting financial stocks early in the year helped the Fund's performance.
Oil prices rose to record levels and the Fund's  overweighting  in energy stocks
also  helped  performance.  Related to this were  strong  upward  price moves in
several solar energy issues held by the Fund.  During the course of the year the
Fund profited from rising prices for various stocks in the materials  sector, as
many  commodity  prices hit new highs.  Most of these  issues  were sold  before
year's  end.  While the  Fund's  technology  stocks  had a mixed  year,  several
individual  holdings  posted   exceptionally  good  returns.   Several  consumer
discretionary, healthcare, media and consumer staples issues negatively impacted
the Fund's return.  To a lesser  extent,  some  technology and financial  issues
weighed on results.

      Measured by position  size and  return, the issues with the most  positive
impact on  performance  last year were Google (5.0% of net assets as of December
31,  2007),  Apple  (2.2%),  Research In Motion  (1.6%),  Suntech  Power (1.4%),
National Oilwell Varco (0.5%), PepsiCo (3.8%), Procter & Gamble (3.7%), and Novo
Nordisk  (1.3%).  Holdings  with the  biggest  negative  impact on the Fund were
Genentech (0.9%),  Starbucks  (0.5%),  Zimmer Holdings (0.8%),  EMC (1.0%),  and
American Express (1.0%).

                                                           Sincerely yours,

                                                           /s/ Bruce N. Alpert

                                                           Bruce N. Alpert
                                                           President
February 22, 2008



 COMPARISON OF CHANGE IN VALUE OF A $10,000 INVESTMENT IN THE GAMCO GROWTH FUND
                     CLASS AAA SHARES AND THE S&P 500 INDEX


         GAMCO GROWTH FUND    S&P 500 INDEX
04/10/87     $ 10,000             $10,000
12/31/87        9,510               8,447
12/31/88       13,234               9,846
12/31/89       18,542              12,961
12/31/90       18,173              12,558
12/31/91       24,410              16,375
12/31/92       25,506              17,621
12/31/93       28,378              19,394
12/31/94       27,414              19,648
12/31/95       36,383              27,022
12/31/96       43,449              33,224
12/31/97       61,971              44,304
12/31/98       80,426              56,975
12/31/99      117,623              68,956
12/31/00      105,191              62,681
12/31/01       79,840              55,235
12/31/02       52,862              43,033
12/31/03       69,450              55,371
12/31/04       72,707              61,390
12/31/05       80,196              64,404
12/31/06       85,232              74,567
12/31/07      100,685              78,661

PAST PERFORMANCE IS NOT PREDICTIVE OF FUTURE RESULTS. The performance tables and
graph do not reflect the deduction of taxes that a shareholder would pay on fund
distributions or the redemption of fund shares.

COMPARATIVE RESULTS
- --------------------------------------------------------------------------------

              AVERAGE ANNUAL RETURNS THROUGH DECEMBER 31, 2007 (A)
              ----------------------------------------------------


                                                                                                               Since
                                                                                                             Inception
                                           Quarter  1 Year    3 Year   5 Year    10 Year  15 Year  20 Year   (4/10/87)
                                           -------  ------    ------   ------    -------  -------  -------   ---------
                                                                                       
GAMCO GROWTH FUND CLASS AAA (B)..........    2.15%    18.13%   11.46%    13.75%    4.98%   9.59%    12.52%     11.79%
S&P 500 Index............................   (3.33)     5.49     8.61     12.82     5.91   10.49     11.80      10.46
Russell 1000 Growth Index................   (0.77)    11.81     8.68     12.11     3.83    8.47     10.66       9.53
Class A..................................    2.15     18.12    11.46     13.76     4.98    9.59     12.52      11.79
                                            (3.73)(c) 11.33(c)  9.28(c)  12.42(c)  4.36(c) 9.16(c)  12.19(c)   11.47(c)
Class B..................................    1.95     17.23    10.62     13.07     4.66    9.37     12.35      11.63
                                            (3.05)(d) 12.23(d)  9.80(d)  12.83(d)  4.66    9.37     12.35      11.63
Class C..................................    1.95     17.23    10.62     13.07     4.66    9.37     12.35      11.63
                                             0.95(e)  16.23(e) 10.62     13.07     4.66    9.37     12.35      11.63

IN THE CURRENT PROSPECTUS,  THE EXPENSE RATIOS FOR CLASS AAA, A, B, AND C SHARES
ARE 1.44%, 1.44%, 2.19%, AND 2.19%, RESPECTIVELY. CLASS AAA SHARES DO NOT HAVE A
SALES  CHARGE.  THE MAXIMUM  SALES CHARGE FOR CLASS A, B, AND C SHARES IS 5.75%,
5.00%, AND 1.00%, RESPECTIVELY.
(a) RETURNS  REPRESENT PAST  PERFORMANCE  AND DO NOT GUARANTEE  FUTURE  RESULTS.
    TOTAL RETURNS AND AVERAGE ANNUAL RETURNS  REFLECT CHANGES IN SHARE PRICE AND
    REINVESTMENT OF DISTRIBUTIONS  AND ARE NET OF EXPENSES.  INVESTMENT  RETURNS
    AND THE PRINCIPAL  VALUE OF AN INVESTMENT  WILL  FLUCTUATE.  WHEN SHARES ARE
    REDEEMED,  THEY  MAY BE  WORTH  MORE  OR  LESS  THAN  THEIR  ORIGINAL  COST.
    PERFORMANCE  RETURNS  FOR  PERIODS  LESS  THAN ONE YEAR ARE NOT  ANNUALIZED.
    CURRENT  PERFORMANCE  MAY BE  LOWER OR  HIGHER  THAN  THE  PERFORMANCE  DATA
    PRESENTED.  VISIT WWW.GABELLI.COM FOR PERFORMANCE INFORMATION AS OF THE MOST
    RECENT  MONTH  END.  INVESTORS  SHOULD  CAREFULLY  CONSIDER  THE  INVESTMENT
    OBJECTIVES,  RISKS, CHARGES, AND EXPENSES OF THE FUND BEFORE INVESTING.  THE
    PROSPECTUS CONTAINS MORE INFORMATION ABOUT THIS AND OTHER MATTERS AND SHOULD
    BE READ CAREFULLY BEFORE INVESTING.
    THE  CLASS AAA  SHARES'  NET ASSET  VALUES  ("NAV'S")  PER SHARE ARE USED TO
    CALCULATE  PERFORMANCE  FOR THE  PERIODS  PRIOR TO THE  ISSUANCE  OF CLASS A
    SHARES,  CLASS B SHARES, AND CLASS C SHARES ON DECEMBER 31, 2003. THE ACTUAL
    PERFORMANCE  FOR THE CLASS B SHARES AND CLASS C SHARES WOULD HAVE BEEN LOWER
    DUE TO THE ADDITIONAL  EXPENSES ASSOCIATED WITH THESE CLASSES OF SHARES. THE
    S&P 500 INDEX AND THE RUSSELL 1000 GROWTH INDEX ARE UNMANAGED  INDICATORS OF
    STOCK MARKET PERFORMANCE.  DIVIDENDS ARE CONSIDERED  REINVESTED.  YOU CANNOT
    INVEST DIRECTLY IN AN INDEX.
(b) EFFECTIVE  FEBRUARY 15, 2007, CLASS AAA SHARES ARE OFFERED ONLY TO INVESTORS
    WHO WERE  SHAREHOLDERS IN ONE OR MORE OF THE REGISTERED FUNDS DISTRIBUTED BY
    GABELLI & COMPANY, INC. PRIOR TO FEBRUARY 15, 2007.
(c) INCLUDES THE EFFECT OF THE MAXIMUM  5.75% SALES  CHARGE AT THE  BEGINNING OF
    THE PERIOD.
(d) PERFORMANCE  RESULTS  INCLUDE  THE  DEFERRED  SALES  CHARGES FOR THE CLASS B
    SHARES UPON REDEMPTION AT THE END OF THE QUARTER,  ONE YEAR, THREE YEAR, AND
    FIVE YEAR PERIODS OF 5%, 5%, 3%, AND 2%, RESPECTIVELY, OF THE FUND'S NAV PER
    SHARE AT THE TIME OF PURCHASE OR SALE,  WHICHEVER  IS LOWER.  CLASS B SHARES
    ARE NOT AVAILABLE FOR NEW PURCHASES.
(e) PERFORMANCE  RESULTS  INCLUDE  THE  DEFERRED  SALES  CHARGES FOR THE CLASS C
    SHARES UPON  REDEMPTION AT THE END OF THE QUARTER AND ONE YEAR PERIODS OF 1%
    OF THE FUND'S NAV PER SHARE AT THE TIME OF  PURCHASE OR SALE,  WHICHEVER  IS
    LOWER.
- --------------------------------------------------------------------------------

                                       2


THE GAMCO GROWTH FUND
DISCLOSURE OF FUND EXPENSES (UNAUDITED)
For the Six Month Period from July 1, 2007 through December 31, 2007
                                                                   EXPENSE TABLE
================================================================================

We believe it is important for you to understand the impact of fees and expenses
regarding  your  investment.  All mutual  funds have  operating  expenses.  As a
shareholder  of a fund,  you  incur  ongoing  costs,  which  include  costs  for
portfolio  management,  administrative  services,  and shareholder reports (like
this one), among others.  Operating  expenses,  which are deducted from a fund's
gross income,  directly  reduce the investment  return of a fund.  When a fund's
expenses are expressed as a percentage of its average net assets, this figure is
known as the expense  ratio.  The  following  examples  are intended to help you
understand  the  ongoing  costs (in  dollars) of  investing  in your Fund and to
compare these costs with those of other mutual funds.  The examples are based on
an  investment  of $1,000 made at the beginning of the period shown and held for
the entire period.

The Expense Table below illustrates your Fund's costs in two ways:

ACTUAL FUND  RETURN:  This section  provides  information  about actual  account
values and actual expenses. You may use this section to help you to estimate the
actual  expenses that you paid over the period after any fee waivers and expense
reimbursements.  The "Ending  Account  Value"  shown is derived  from the Fund's
ACTUAL return during the past six months,  and the "Expenses Paid During Period"
shows the dollar  amount  that would have been paid by an  investor  who started
with $1,000 in the Fund. You may use this information,  together with the amount
you invested, to estimate the expenses that you paid over the period.

To do so, simply  divide your account  value by $1,000 (for  example,  an $8,600
account value  divided by $1,000 = 8.6),  then multiply the result by the number
given for your Fund under the heading  "Expenses Paid During Period" to estimate
the expenses you paid during this period.

HYPOTHETICAL 5% RETURN:  This section provides  information  about  hypothetical
account  values and  hypothetical  expenses  based on the Fund's actual  expense
ratio. It assumes a hypothetical  annualized return of 5% before expenses during
the period shown. In this case - because the hypothetical return used is NOT the
Fund's  actual  return - the  results  do not apply to your  investment  and you
cannot use the  hypothetical  account  value and expense to estimate  the actual
ending  account  balance or expenses  you paid for the period.  This  example is
useful in making  comparisons  of the ongoing costs of investing in the Fund and
other  funds.  To do so,  compare  this  5%  hypothetical  example  with  the 5%
hypothetical examples that appear in shareholder reports of other funds.

Please note that the  expenses  shown in the table are meant to  highlight  your
ongoing  costs only and do not  reflect  any  transactional  costs such as sales
charges (loads),  redemption fees, or exchange fees, if any, which are described
in the Prospectus. If these costs were applied to your account, your costs would
be higher.  Therefore, the 5% hypothetical return is useful in comparing ongoing
costs only,  and will not help you determine the relative  total costs of owning
different funds. The "Annualized  Expense Ratio"  represents the actual expenses
for the last six  months  and may be  different  from the  expense  ratio in the
Financial Highlights which is for the year ended December 31, 2007.

                     Beginning        Ending        Annualized     Expenses
                   Account Value   Account Value     Expense      Paid During
                     07/01/07        12/31/07         Ratio         Period*
- --------------------------------------------------------------------------------
THE GAMCO GROWTH FUND
- --------------------------------------------------------------------------------
ACTUAL FUND RETURN
Class AAA           $1,000.00       $1,089.10          1.43%         $ 7.57
Class A             $1,000.00       $1,089.10          1.44%         $ 7.62
Class B             $1,000.00       $1,085.00          2.18%         $11.52
Class C             $1,000.00       $1,085.00          2.19%         $11.57

HYPOTHETICAL 5% RETURN
Class AAA           $1,000.00       $1,018.09          1.43%         $ 7.31
Class A             $1,000.00       $1,018.04          1.44%         $ 7.36
Class B             $1,000.00       $1,014.29          2.18%         $11.13
Class C             $1,000.00       $1,014.24          2.19%         $11.18
*   Expenses are equal to the Fund's  annualized  expense ratio for the last six
    months  multiplied by the average account value over the period,  multiplied
    by the number of days in the most recent fiscal  half-year,  then divided by
    365.


                                       3


SUMMARY OF PORTFOLIO HOLDINGS (UNAUDITED)

The following table presents portfolio holdings as a percent of total net assets
as of December 31, 2007:

THE GAMCO GROWTH FUND

Industrial ...................................   16.6%
Software & Services ..........................   13.0%
Energy .......................................   11.8%
Consumer Staples .............................    9.5%
Semiconductors ...............................    7.5%
Retail .......................................    6.7%
Financial Services ...........................    6.6%
Pharmaceuticals & Biotechnology ..............    5.1%
Communications Equipment .....................    4.9%
Health Care Equipment & Services .............    4.8%
Computers & Peripherals ......................    4.6%
Telecommunications ...........................    3.3%
Media ........................................    2.3%
U.S. Treasury Bills ..........................    2.3%
Materials ....................................    0.9%
U.S. Treasury Notes ..........................    0.4%
Hotels and Gaming ............................    0.0%
Other Assets and Liabilities (Net) ...........   (0.3)%
                                                -----
                                                100.0%
                                                =====


THE FUND FILES A COMPLETE SCHEDULE OF PORTFOLIO HOLDINGS WITH THE SECURITIES AND
EXCHANGE  COMMISSION (THE "SEC") FOR THE FIRST AND THIRD QUARTERS OF EACH FISCAL
YEAR ON FORM N-Q,  THE LAST OF WHICH WAS FILED FOR THE QUARTER  ENDED  SEPTEMBER
30, 2007.  SHAREHOLDERS  MAY OBTAIN THIS  INFORMATION AT  WWW.GABELLI.COM  OR BY
CALLING THE FUND AT 800-GABELLI (800-422-3554). THE FUND'S FORM N-Q IS AVAILABLE
ON THE SEC'S WEBSITE AT  WWW.SEC.GOV  AND MAY ALSO BE REVIEWED AND COPIED AT THE
SEC'S PUBLIC REFERENCE ROOM IN WASHINGTON,  DC.  INFORMATION ON THE OPERATION OF
THE PUBLIC REFERENCE ROOM MAY BE OBTAINED BY CALLING 1-800-SEC-0330.


PROXY VOTING

The Fund files Form N-PX with its complete proxy voting record for the 12 months
ended June 30th,  no later than August 31st of each year. A  description  of the
Fund's  proxy  voting  policies,  procedures,  and how the  Fund  voted  proxies
relating to portfolio  securities is available without charge,  upon request, by
(i) calling 800-GABELLI (800-422-3554); (ii) writing to The Gabelli Funds at One
Corporate  Center,  Rye, NY  10580-1422;  or (iii) visiting the SEC's website at
www.sec.gov.






                                       4




THE GAMCO GROWTH FUND
SCHEDULE OF INVESTMENTS -- DECEMBER 31, 2007
================================================================================

                                                                     MARKET
    SHARES                                             COST           VALUE
    ------                                             ----           -----

              COMMON STOCKS -- 97.6%
              CONSUMER DISCRETIONARY -- 9.0%
              HOTELS AND GAMING -- 0.0%
      20,000  InterContinental Hotels Group plc .   $    527,336   $    348,000
                                                    ------------   ------------
              MEDIA -- 2.3%
     335,000  News Corp., Cl. B .................      7,179,851      7,118,750
     330,000  Viacom Inc., Cl. B+. ..............     13,199,437     14,493,600
                                                    ------------   ------------
                                                      20,379,288     21,612,350
                                                    ------------   ------------
              RETAIL -- 6.7%
      40,000  Abercrombie & Fitch Co., Cl. A ....      3,302,822      3,198,800
     210,000  Coach Inc.+ .......................      8,403,832      6,421,800
     335,000  CVS Caremark Corp. ................     12,120,766     13,316,250
     120,000  J. Crew Group Inc.+. ..............      4,879,535      5,785,200
      75,000  NIKE Inc., Cl. B ..................      4,158,740      4,818,000
     170,000  Nordstrom Inc. ....................      8,260,120      6,244,100
      95,000  Polo Ralph Lauren Corp. ...........      7,555,124      5,870,050
     230,000  Starbucks Corp.+ ..................      6,424,044      4,708,100
      50,000  Target Corp. ......................      3,044,894      2,500,000
      88,400  Tiffany & Co. .....................      2,513,492      4,069,052
     160,000  Whole Foods Market Inc. ...........      7,744,435      6,528,000
                                                    ------------   ------------
                                                      68,407,804     63,459,352
                                                    ------------   ------------
              TOTAL CONSUMER DISCRETIONARY ......     89,314,428     85,419,702
                                                    ------------   ------------
              CONSUMER STAPLES -- 9.5%
      80,000  Groupe Danone .....................      6,169,679      7,181,602
      14,000  Nestle SA .........................      6,123,266      6,430,243
     470,000  PepsiCo Inc. ......................     25,545,814     35,673,000
     475,000  Procter & Gamble Co. ..............     27,446,739     34,874,500
     150,000  Walgreen Co. ......................      4,878,449      5,712,000
                                                    ------------   ------------
              TOTAL CONSUMER STAPLES ............     70,163,947     89,871,345
                                                    ------------   ------------
              ENERGY -- 11.8%
      42,000  Apache Corp. ......................      3,269,285      4,516,680
      55,000  Canadian Natural Resources Ltd. ...      4,036,194      4,022,700
     100,000  Chesapeake Energy Corp. ...........      3,591,928      3,920,000
      33,000  Diamond Offshore Drilling Inc. ....      3,747,259      4,686,000
      58,000  EnCana Corp. ......................      3,842,718      3,941,680
      55,000  Hess Corp. ........................      2,619,511      5,547,300
      50,000  Murphy Oil Corp. ..................      2,898,803      4,242,000
      65,000  National Oilwell Varco Inc.+ ......      2,960,394      4,774,900
      72,000  Noble Corp. .......................      3,731,682      4,068,720
      58,000  Occidental Petroleum Corp. ........      3,086,046      4,465,420
      70,000  Oceaneering International Inc.+ ...      4,729,704      4,714,500

                                                                     MARKET
    SHARES                                             COST           VALUE
    ------                                             ----           -----

      70,000  Petroleo Brasileiro SA, ADR .......   $  7,449,163   $  8,066,800
      78,000  Schlumberger Ltd. .................      4,113,503      7,672,860
     140,000  Suncor Energy Inc. ................     13,591,410     15,222,200
      60,556  Transocean Inc. ...................      8,021,911      8,668,592
     150,000  Veolia Environnement ..............     12,322,484     13,695,776
      70,000  Weatherford International Ltd.+ ...      4,405,723      4,802,000
      96,250  XTO Energy Inc. ...................      4,110,269      4,943,400
                                                    ------------   ------------
              TOTAL ENERGY.......................     92,527,987    111,971,528
                                                    ------------   ------------
              FINANCIAL SERVICES -- 6.6%
      38,000  Affiliated Managers Group Inc.+ ...      4,213,081      4,463,480
     180,000  American Express Co. ..............     10,250,565      9,363,600
     135,900  Northern Trust Corp. ..............      7,890,481     10,407,222
     128,800  State Street Corp. ................      7,827,866     10,458,560
     150,000  T. Rowe Price Group Inc. ..........      7,264,948      9,132,000
     730,000  The Charles Schwab Corp. ..........     15,914,634     18,651,500
                                                    ------------   ------------
              TOTAL FINANCIAL SERVICES ..........     53,361,575     62,476,362
                                                    ------------   ------------
              HEALTH CARE -- 9.9%
              HEALTH CARE EQUIPMENT & SERVICES -- 4.8%
     101,000  Alcon Inc. ........................     11,968,768     14,447,040
     210,000  St. Jude Medical Inc.+ ............      9,151,284      8,534,400
     200,000  Stryker Corp. .....................     11,082,822     14,944,000
     115,000  Zimmer Holdings Inc.+ .............      9,209,964      7,607,250
                                                    ------------   ------------
                                                      41,412,838     45,532,690
                                                    ------------   ------------
              PHARMACEUTICALS & BIOTECHNOLOGY -- 5.1%
     125,000  Genentech Inc.+ ...................      9,727,408      8,383,750
     310,000  Gilead Sciences Inc.+ .............     11,238,733     14,263,100
     191,600  Novo Nordisk A/S, ADR .............      7,946,444     12,427,176
     480,000  Schering-Plough Corp. .............     13,978,439     12,787,200
                                                    ------------   ------------
                                                      42,891,024     47,861,226
                                                    ------------   ------------
              TOTAL HEALTH CARE..................     84,303,862     93,393,916
                                                    ------------   ------------
              INDUSTRIAL -- 16.6%
       1,692  Areva SA ..........................      1,914,487      1,941,927
      70,000  C.H. Robinson Worldwide Inc. ......      2,978,774      3,788,400
      80,000  Deere & Co. .......................      5,846,966      7,449,600
     260,000  Emerson Electric Co. ..............     11,184,873     14,731,600
      70,000  Expeditors International of
                Washington Inc. .................      3,180,961      3,127,600
      70,000  General Dynamics Corp. ............      2,885,557      6,229,300
     780,000  General Electric Co. ..............     27,069,529     28,914,600
     240,000  ITT Corp. .........................     11,117,197     15,849,600
     140,000  L-3 Communications Holdings Inc. ..     10,905,804     14,831,600
     160,000  Rockwell Collins Inc. .............      9,855,961     11,515,200
      90,000  SunPower Corp., Cl. A+ ............      7,869,279     11,735,100

                 See accompanying notes to financial statements.


                                       5

THE GAMCO GROWTH FUND
SCHEDULE OF INVESTMENTS (CONTINUED) -- DECEMBER 31, 2007
================================================================================

                                                                     MARKET
    SHARES                                             COST           VALUE
    ------                                             ----           -----

              COMMON STOCKS (CONTINUED)
              INDUSTRIAL (CONTINUED)
     165,000  Suntech Power Holdings Co. Ltd., ADR+ $  6,863,471   $ 13,582,800
     185,000  United Technologies Corp. .........      9,498,178     14,159,900
      85,000  Vestas Wind Systems A/S+ ..........      6,136,472      9,199,910
                                                    ------------   ------------
              TOTAL INDUSTRIAL...................    117,307,509    157,057,137
                                                    ------------   ------------
              INFORMATION TECHNOLOGY -- 31.0%
              COMMUNICATIONS EQUIPMENT -- 4.9%
   1,201,000  Cisco Systems Inc.+. ..............     30,391,728     32,511,070
     225,000  Harris Corp. ......................     12,308,377     14,103,000
                                                    ------------   ------------
                                                      42,700,105     46,614,070
                                                    ------------   ------------
              COMPUTERS & PERIPHERALS -- 4.6%
     105,000  Apple Inc.+ .......................     12,358,384     20,798,400
      12,000  Nintendo Co. Ltd. .................      4,950,293      7,186,143
     135,000  Research In Motion Ltd.+ ..........     12,775,312     15,309,000
                                                    ------------   ------------
                                                      30,083,989     43,293,543
                                                    ------------   ------------
              SEMICONDUCTORS -- 7.5%
   1,050,000  Intel Corp. .......................     26,847,366     27,993,000
     170,000  MEMC Electronic Materials Inc.+ ...     11,571,454     15,043,300
     120,000  NVIDIA Corp.+ .....................      2,926,426      4,082,400
     530,000  Texas Instruments Inc. ............     16,928,879     17,702,000
     220,000  Trimble Navigation Ltd.+ ..........      8,238,570      6,652,800
                                                    ------------   ------------
                                                      66,512,695     71,473,500
                                                    ------------   ------------
              SOFTWARE & SERVICES -- 13.0%
     330,000  Adobe Systems Inc.+. ..............     12,751,565     14,100,900
     200,000  eBay Inc.+ ........................      7,086,767      6,638,000
     510,000  EMC Corp.+ ........................     11,805,196      9,450,300
      67,900  Google Inc., Cl. A+. ..............     20,949,240     46,951,492
      55,000  MasterCard Inc., Cl. A ............     10,071,217     11,836,000
     950,000  Microsoft Corp. ...................     26,108,730     33,820,000
                                                    ------------   ------------
                                                      88,772,715    122,796,692
                                                    ------------   ------------
              TELECOMMUNICATIONS -- 1.0%
     400,000  Corning Inc. ......................      9,991,192      9,596,000
                                                    ------------   ------------
              TOTAL INFORMATION TECHNOLOGY ......    238,060,696    293,773,805
                                                    ------------   ------------

                                                                     MARKET
    SHARES                                             COST           VALUE
    ------                                             ----           -----

              MATERIALS -- 0.9%
      75,000  Monsanto Co. ......................   $  6,389,656   $  8,376,750
                                                    ------------   ------------
              WIRELESS COMMUNICATIONS -- 2.3%
              TELECOMMUNICATIONS -- 2.3%
     130,000  America Movil SAB de CV, Cl. L, ADR      6,913,777      7,980,700
     310,000  Rogers Communications Inc., Cl. B .     11,360,417     14,027,500
                                                    ------------   ------------
                                                      18,274,194     22,008,200
                                                    ------------   ------------
              TOTAL WIRELESS COMMUNICATIONS .....     18,274,194     22,008,200
                                                    ------------   ------------
              TOTAL COMMON STOCKS ...............    769,703,854    924,348,745
                                                    ------------   ------------
   PRINCIPAL
    AMOUNT
    ------
              U.S. GOVERNMENT OBLIGATIONS -- 2.7%
              U.S. TREASURY BILLS -- 2.3%
 $22,092,000  U.S. Treasury Bills,
                2.855% to 3.085%++,
                01/03/08 to 03/27/08 .............    21,984,346     21,981,746
                                                    ------------   ------------
              U.S. TREASURY NOTES -- 0.4%
   3,339,000  U.S.  Treasury  Note,
                3.000%, 02/15/08 .................     3,334,598      3,334,598
                                                    ------------   ------------
              TOTAL U.S. GOVERNMENT OBLIGATIONS       25,318,944     25,316,344
                                                    ------------   ------------
              TOTAL
                INVESTMENTS -- 100.3% ............  $795,022,798    949,665,089
                                                    ============
              OTHER ASSETS AND LIABILITIES (NET) -- (0.3)%           (2,549,903)
                                                                   ------------
              NET ASSETS -- 100.0%..............................   $947,115,186
                                                                   ============
- ----------------
 +    Non-income producing security.
 ++   Represents annualized yield at date of purchase.
 ADR  American Depository Receipt






                 See accompanying notes to financial statements.


                                       6



                              THE GAMCO GROWTH FUND


STATEMENT OF ASSETS AND LIABILITIES
DECEMBER 31, 2007
================================================================================

ASSETS:
  Investments, at value (cost $795,022,798)...........  $   949,665,089
  Cash................................................            1,663
  Receivable for Fund shares sold.....................          797,758
  Dividends receivable................................          894,469
  Prepaid expense.....................................           54,781
                                                         --------------
  TOTAL ASSETS........................................      951,413,760
                                                         --------------
LIABILITIES:
  Payable for Fund shares redeemed....................        2,407,543
  Payable for investment advisory fees................          808,242
  Payable for distribution fees.......................          202,859
  Payable for accounting fees.........................           11,251
  Payable for shareholder services fees...............          577,998
  Other accrued expenses..............................          290,681
                                                         --------------
  TOTAL LIABILITIES...................................        4,298,574
                                                         --------------
  NET ASSETS applicable to 26,186,554
     shares outstanding ..............................   $  947,115,186
                                                         ==============
NET ASSETS CONSIST OF:
  Paid-in capital, each class at $0.01 par value .....   $1,617,324,916
  Accumulated net realized loss on investments
    and foreign currency transactions ................     (824,852,021)
  Net unrealized appreciation on investments .........      154,642,291
                                                         --------------
  NET ASSETS..........................................   $  947,115,186
                                                         ==============
SHARES OF BENEFICIAL INTEREST:
  CLASS AAA:
  Net Asset Value, offering and redemption price per
    share ($945,067,704 / 26,128,819 shares outstanding;
    unlimited number of shares authorized)............           $36.17
                                                                 ======
  CLASS A:
  Net Asset Value and redemption price per share
    ($706,881 / 19,539 shares outstanding;
    unlimited number of shares authorized) ...........           $36.18
                                                                 ======
  Maximum offering price per share (NAV / .9425,
    based on maximum sales charge of 5.75%
    of the offering price) ...........................           $38.39
                                                                 ======
  CLASS B:
  Net Asset Value and offering price per share
    ($338,979 / 9,658 shares outstanding;
    unlimited number of shares authorized) ...........           $35.10(a)
                                                                 ======
  CLASS C:
  Net Asset Value and offering price per share
    ($1,001,622 / 28,538 shares outstanding;
    unlimited number of shares authorized) ...........           $35.10(a)
                                                                 ======


(a) Redemption price varies based on the length of time held.



STATEMENT OF OPERATIONS
FOR THE YEAR ENDED DECEMBER 31, 2007
================================================================================

INVESTMENT INCOME:
  Dividends (net of foreign taxes of $119,508)            $   8,302,168
  Interest............................................          730,776
                                                          -------------
  TOTAL INVESTMENT INCOME.............................        9,032,944
                                                          -------------
EXPENSES:
  Investment advisory fees............................        9,359,283
  Distribution fees - Class AAA.......................        2,336,961
  Distribution fees - Class A.........................              749
  Distribution fees - Class B.........................            3,135
  Distribution fees - Class C.........................            5,308
  Shareholder services fees...........................        1,054,488
  Shareholder communications expenses.................          416,084
  Custodian fees......................................          118,466
  Legal and audit fees................................           77,718
  Trustees' fees......................................           71,531
  Accounting fees.....................................           45,000
  Registration expenses...............................           16,565
  Interest expense....................................            3,500
  Miscellaneous expenses..............................           84,110
                                                          -------------
  TOTAL EXPENSES......................................       13,592,898
  Less: Custodian fee credits.........................           (4,444)
                                                          -------------
  NET EXPENSES........................................       13,588,454
                                                          -------------
  NET INVESTMENT LOSS.................................       (4,555,510)
                                                          -------------
NET REALIZED AND UNREALIZED GAIN
  ON INVESTMENTS AND FOREIGN CURRENCY:
  Net realized gain on investments....................      112,541,893
  Net realized gain on foreign currency transactions..            2,282
                                                          -------------
  Net realized gain on investments
    and foreign currency transactions ................      112,544,175
                                                          -------------
  Net change in unrealized appreciation/
    depreciation on investments ......................       47,767,726
                                                          -------------
  NET REALIZED AND UNREALIZED GAIN
    ON INVESTMENTS AND FOREIGN CURRENCY ..............      160,311,901
                                                          -------------
  NET INCREASE IN NET ASSETS RESULTING
    FROM OPERATIONS ..................................    $ 155,756,391
                                                          =============

                 See accompanying notes to financial statements.


                                       7


                             THE GAMCO GROWTH FUND


STATEMENT OF CHANGES IN NET ASSETS
================================================================================


                                                                                 YEAR ENDED           YEAR ENDED
                                                                              DECEMBER 31, 2007    DECEMBER 31, 2006
                                                                              -----------------    -----------------

                                                                                                   
OPERATIONS:
  Net investment loss......................................................     $  (4,555,510)       $   (1,935,652)
  Net realized gain on investments and foreign currency transactions.......       112,544,175           124,028,687
  Net change in unrealized appreciation/depreciation on investments........        47,767,726           (60,720,080)
                                                                                -------------        --------------
  NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS.....................       155,756,391            61,372,955
                                                                                -------------        --------------
SHARES OF BENEFICIAL INTEREST TRANSACTIONS:
  Class AAA................................................................      (167,322,376)         (244,152,530)
  Class A..................................................................           383,595               (14,124)
  Class C..................................................................           517,747              (176,602)
                                                                                -------------        --------------
  NET DECREASE IN NET ASSETS FROM SHARES OF BENEFICIAL INTEREST TRANSACTIONS     (166,421,034)         (244,343,256)
                                                                                -------------        --------------
  REDEMPTION FEES..........................................................             2,333                 6,591
                                                                                -------------        --------------
  NET DECREASE IN NET ASSETS...............................................       (10,662,310)         (182,963,710)

NET ASSETS:
  Beginning of period......................................................       957,777,496         1,140,741,206
                                                                                 ------------         -------------
  End of period (including undistributed net investment income
    of $0 and $0, respectively) ...........................................     $ 947,115,186        $  957,777,496
                                                                                =============        ==============


THE GAMCO GROWTH FUND
NOTES TO FINANCIAL STATEMENTS
================================================================================

1.  ORGANIZATION.  The GAMCO Growth Fund (the "Fund"),  was organized on October
24, 1986 as a Massachusetts  business trust. The Fund is a diversified  open-end
management  investment  company  registered under the Investment  Company Act of
1940,  as amended  (the "1940  Act").  The Fund's  primary  objective is capital
appreciation. The Fund commenced investment operations on April 10, 1987.

2. SIGNIFICANT  ACCOUNTING POLICIES.  The preparation of financial statements in
accordance with United States ("U.S.") generally accepted accounting  principles
requires  management to make estimates and assumptions  that affect the reported
amounts and disclosures in the financial statements. Actual results could differ
from those  estimates.  The  following  is a summary of  significant  accounting
policies followed by the Fund in the preparation of its financial statements.

SECURITY  VALUATION.  Portfolio  securities  listed or  traded  on a  nationally
recognized securities exchange or traded in the U.S. over-the-counter market for
which market quotations are readily available are valued at the last quoted sale
price or a market's  official  closing  price as of the close of business on the
day the  securities  are being  valued.  If there  were no sales  that day,  the
security is valued at the  average of the  closing  bid and asked  prices or, if
there were no asked  prices  quoted on that day,  then the security is valued at
the closing bid price on that day. If no bid or asked  prices are quoted on such
day,  the  security is valued at the most  recently  available  price or, if the
Board of Trustees (the "Board") so determines, by such other method as the Board
shall  determine  in good  faith to reflect  its fair  market  value.  Portfolio
securities  traded on more than one national  securities  exchange or market are
valued according to the broadest and most  representative  market, as determined
by Gabelli Funds, LLC (the "Adviser").

                                       8

THE GAMCO GROWTH FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
================================================================================

Portfolio  securities  primarily traded on a foreign market are generally valued
at the preceding  closing values of such securities on the relevant market,  but
may be fair valued  pursuant to  procedures  established  by the Board if market
conditions change  significantly after the close of the foreign market but prior
to the  close of  business  on the day the  securities  are being  valued.  Debt
instruments  with  remaining  maturities  of 60 days or less that are not credit
impaired are valued at amortized cost,  unless the Board  determines such amount
does not reflect the securities' fair value, in which case these securities will
be fair valued as determined by the Board.  Debt  instruments  having a maturity
greater  than 60 days for which  market  quotations  are readily  available  are
valued at the average of the latest bid and asked prices. If there were no asked
prices  quoted on such day,  the security is valued using the closing bid price.
Futures contracts are valued at the closing  settlement price of the exchange or
board of trade on which the applicable contract is traded.

Securities and assets for which market  quotations are not readily available are
fair  valued as  determined  by the  Board.  Fair  valuation  methodologies  and
procedures may include, but are not limited to: analysis and review of available
financial and non-financial  information  about the company;  comparisons to the
valuation and changes in valuation of similar securities, including a comparison
of foreign  securities to the equivalent U.S. dollar value ADR securities at the
close of the U.S.  exchange;  and evaluation of any other information that could
be indicative of the value of the security.

In September 2006, the Financial  Accounting Standards Board (the "FASB") issued
Statement  of  Financial   Accounting   Standards   ("SFAS")   157,  Fair  Value
Measurements,  which  clarifies  the  definition  of  fair  value  and  requires
companies  to expand  their  disclosure  about the use of fair  value to measure
assets and  liabilities  in interim  and annual  periods  subsequent  to initial
recognition.  Adoption of SFAS 157  requires  the use of the price that would be
received  to sell  an  asset  or paid to  transfer  a  liability  in an  orderly
transaction  between market  participants at the  measurement  date. SFAS 157 is
effective  for  financial  statements  issued for fiscal years  beginning  after
November 15, 2007, and interim  periods within those fiscal years. At this time,
management is in the process of reviewing the  requirements  of SFAS 157 against
its current valuation policies to determine future applicability.

FOREIGN  SECURITIES.  The Fund  may  directly  purchase  securities  of  foreign
issuers.  Investing in securities of foreign issuers  involves special risks not
typically  associated  with investing in securities of U.S.  issuers.  The risks
include  possible  revaluation of currencies,  the ability to repatriate  funds,
less complete financial information about companies, and possible future adverse
political  and  economic  developments.  Moreover,  securities  of many  foreign
issuers and their markets may be less liquid and their prices more volatile than
those of securities of comparable U.S. issuers.

FOREIGN  TAXES.  The Fund may be subject to  foreign  taxes on income,  gains on
investments,  or currency  repatriation,  a portion of which may be recoverable.
The Fund will accrue such taxes and  recoveries  as  applicable,  based upon its
current interpretation of tax rules and regulations that exist in the markets in
which it invests.

SECURITIES  TRANSACTIONS  AND INVESTMENT  INCOME.  Securities  transactions  are
accounted  for on the  trade  date  with  realized  gain or loss on  investments
determined  by using the  identified  cost method.  Interest  income  (including
amortization  of premium and  accretion  of discount) is recorded on the accrual
basis.  Premiums  and  discounts  on debt  securities  are  amortized  using the
effective  yield  to  maturity  method.  Dividend  income  is  recorded  on  the
ex-dividend date except for certain  dividends which are recorded as soon as the
Fund is informed of the dividend.

                                       9

THE GAMCO GROWTH FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
================================================================================

DETERMINATION   OF  NET  ASSET  VALUE  AND  CALCULATION  OF  EXPENSES.   Certain
administrative  expenses are common to, and allocated among,  various affiliated
funds.  Such allocations are made on the basis of each Fund's average net assets
or other criteria  directly  affecting the expenses as determined by the Adviser
pursuant to procedures established by the Board.

In calculating the NAV per share of each class,  investment income, realized and
unrealized  gains and losses,  redemption  fees,  and expenses  other than class
specific  expenses  are  allocated  daily to each class of shares based upon the
proportion  of  net  assets  of  each  class  at  the  beginning  of  each  day.
Distribution expenses are borne solely by the class incurring the expense.

CUSTODIAN FEE CREDITS AND INTEREST EXPENSE. When cash balances are maintained in
the  custody  account,  the Fund  receives  credits  which  are  used to  offset
custodian  fees.  The gross  expenses  paid under the  custody  arrangement  are
included in custodian fees in the Statement of Operations with the corresponding
expense offset, if any, shown as "custodian fee credits." When cash balances are
overdrawn, the Fund is charged an overdraft fee equal to 2.00% above the federal
funds rate on  outstanding  balances.  This  amount,  if any,  would be shown as
"interest expense" in the Statement of Operations.

DISTRIBUTIONS TO SHAREHOLDERS. Distributions to shareholders if any are recorded
on the ex-dividend  date.  Distributions to shareholders are based on income and
capital gains as determined in accordance  with federal income tax  regulations,
which may  differ  from  income  and  capital  gains as  determined  under  U.S.
generally accepted accounting principles. These differences are primarily due to
differing  treatments of income and gains on various investment  securities held
by  the  Fund,   timing   differences,   and  differing   characterizations   of
distributions made by the Fund. These book/tax  differences are either temporary
or  permanent  in  nature.  To  the  extent  these  differences  are  permanent,
adjustments are made to the appropriate  capital accounts in the period when the
differences arise. These reclassifications have no impact on the net asset value
of the Fund. For the fiscal year ended December 31, 2007, reclassifications were
made to decrease accumulated net investment loss by $4,555,510,  and to increase
accumulated net realized loss on investments and foreign  currency  transactions
by $1,637 with an offsetting adjustment to paid-in capital.

No  distributions  were made during the fiscal years ended December 31, 2007 and
December 31, 2006.

PROVISION  FOR  INCOME  TAXES.  The Fund  intends  to  continue  to qualify as a
regulated  investment company under Subchapter M of the Internal Revenue Code of
1986, as amended (the  "Code").  It is the policy of the Fund to comply with the
requirements  of the Code  applicable to regulated  investment  companies and to
distribute  substantially  all of its net investment  company taxable income and
net capital gains. Therefore, no provision for federal income taxes is required.

At December 31, 2007, the difference between book basis and tax basis unrealized
appreciation  was  primarily  due to  deferral of losses from wash sales for tax
purposes.

At December 31, 2007, the components of accumulated  earnings/(losses)  on a tax
basis were as follows:

    Accumulated capital loss carryforwards...............     $(821,106,933)
    Net unrealized appreciation..........................       150,897,203
                                                              -------------
    Total................................................     $(670,209,730)
                                                              =============


                                       10

THE GAMCO GROWTH FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
================================================================================

At December 31, 2007,  the Fund had net capital loss  carryforwards  for federal
income tax  purposes  of  $821,106,933,  which are  available  to reduce  future
required  distributions  of net capital gains to  shareholders.  $469,914,764 is
available  through 2010;  $350,050,494 is available through 2011; and $1,141,675
is available through 2012.

During the fiscal year ended  December 31, 2007,  The GAMCO Growth Fund utilized
capital loss carryforwards of $109,612,571.

The following  summarizes the tax cost of investments and the related unrealized
appreciation/(depreciation) at December 31, 2007:


                                                     GROSS             GROSS
                                                  UNREALIZED        UNREALIZED      NET UNREALIZED
                                    COST         APPRECIATION       DEPRECIATION     APPRECIATION
                                    ----         ------------       ------------     ------------
                                                                         
       Investments............ $798,767,886      $174,658,435      $(23,761,232)     $150,897,203


FASB  Interpretation  No. 48,  "Accounting  for  Uncertainty in Income Taxes, an
Interpretation of FASB Statement No. 109" ("the  Interpretation")  established a
minimum  threshold  for  financial  statement  recognition  of  the  benefit  of
positions taken in filing tax returns  (including whether the Fund is taxable in
a particular  jurisdiction)  and required certain expanded tax disclosures.  The
Fund has adopted the  Interpretation for all open tax years and it had no impact
on the amounts reported in the financial statements.

3. INVESTMENT  ADVISORY AGREEMENT AND OTHER  TRANSACTIONS.  The Fund has entered
into an  investment  advisory  agreement  (the  "Advisory  Agreement")  with the
Adviser which provides that the Fund will pay the Adviser a fee,  computed daily
and paid monthly,  at the annual rate of 1.00% of the value of its average daily
net assets.  In accordance with the Advisory  Agreement,  the Adviser provides a
continuous   investment   program  for  the  Fund's   portfolio,   oversees  the
administration  of all aspects of the Fund's business and affairs,  and pays the
compensation of all Officers and Trustees of the Fund who are affiliated persons
of the Adviser.

The Fund pays each Trustee who is not  considered to be an affiliated  person an
annual retainer of $6,000 plus $500 for each Board meeting attended and they are
reimbursed for any out of pocket expenses  incurred in attending  meetings.  All
Board committee  members  receive $500 per meeting  attended and the chairman of
each  committee  also  receives  $1,000 per year.  Trustees who are directors or
employees of the Adviser or an affiliated  company  receive no  compensation  or
expense reimbursement from the Fund.

4.  DISTRIBUTION  PLAN.  The Fund's Board has adopted a  distribution  plan (the
"Plan")  for each class of shares  pursuant  to Rule  12b-1  under the 1940 Act.
Gabelli & Company,  Inc.  ("Gabelli &  Company"),  an  affiliate of the Adviser,
serves as  distributor  of the Fund.  Under the Class AAA, Class A, Class B, and
Class C Share  Plans,  payments  are  authorized  to Gabelli & Company at annual
rates of 0.25%, 0.25%, 1.00%, and 1.00%, respectively,  of the average daily net
assets of those classes,  the annual  limitations under each Plan. Such payments
are accrued daily and paid monthly.

5. PORTFOLIO SECURITIES. Purchases and proceeds from the sales of securities for
the fiscal year ended December 31, 2007,  other than  short-term  securities and
U.S.   Government   obligations,   aggregated   $833,650,701  and  $992,179,121,
respectively.

                                       11

THE GAMCO GROWTH FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
================================================================================

6. TRANSACTIONS WITH AFFILIATES. During the fiscal year ended December 31, 2007,
the Fund paid brokerage  commissions on security  trades of $53,980 to Gabelli &
Company.  Additionally,  Gabelli & Company  informed  the Fund that it  received
$1,336 from investors  representing  commissions (sales charges and underwriting
fees) on sales and redemptions of Fund shares.

The cost of calculating  the Fund's NAV per share is a Fund expense  pursuant to
the Advisory Agreement between the Fund and the Adviser.  During the fiscal year
ended  December  31,  2007,  the Fund paid or accrued  $45,000 to the Adviser in
connection with the cost of computing the Fund's NAV.

7.  LINE OF  CREDIT.  Effective  June  20,  2007,  the Fund  participates  in an
unsecured line of credit of up to  $75,000,000,  and may borrow up to 10% of its
net assets from the custodian for temporary  borrowing  purposes.  Prior to June
20, 2007, the line of credit was $25,000,000.  Borrowings under this arrangement
bear  interest at 0.75% above the federal  funds rate on  outstanding  balances.
This amount,  if any,  would be shown as "interest  expense" in the Statement of
Operations.  During  the fiscal  year ended  December  31,  2007,  there were no
borrowings under the line of credit.

8. SHARES OF BENEFICIAL INTEREST. The Fund offers five classes of shares - Class
AAA Shares,  Class A Shares, Class B Shares, Class C Shares, and Class I Shares.
Effective  February 15, 2007, Class AAA Shares are offered only to investors who
were  shareholders  prior to that  date in one or more of the  registered  funds
distributed  by  Gabelli  &  Company.  Class AAA  Shares  are  offered  to these
investors only through selected  broker/dealers  or the transfer agent without a
sales  charge.   Class  I  Shares  are  offered  to   foundations,   endowments,
institutions,  and  employee  benefit  plans.  Class A Shares  are  subject to a
maximum  front-end  sales  charge  of 5.75%.  Class B Shares  are  subject  to a
contingent  deferred sales charge ("CDSC") upon  redemption  within six years of
purchase and automatically  convert to Class A Shares  approximately eight years
after  the  original  purchase.  The  applicable  CDSC is equal  to a  declining
percentage  of the  lesser  of the NAV per  share  at the  date of the  original
purchase or at the date of redemption, based on the length of time held. Class C
Shares are subject to a 1.00% CDSC for one year after  purchase.  Class B Shares
are available only through exchange of Class B Shares of other funds distributed
by Gabelli & Company. Class I Shares were first issued on January 11, 2008.

The Fund imposes a redemption fee of 2.00% on Class AAA Shares,  Class A Shares,
Class B  Shares,  Class C  Shares,  and  Class I  Shares  that are  redeemed  or
exchanged  on or  before  the  seventh  day after  the date of a  purchase.  The
redemption fee is deducted from the proceeds  otherwise payable to the redeeming
shareholders  and is retained by the Fund. The  redemption  fees retained by the
Fund during the fiscal  years ended  December  31,  2007 and  December  31, 2006
amounted to $2,333 and $6,591, respectively.

The  redemption fee does not apply to redemptions of shares where (i) the shares
were   purchased   through   automatic   reinvestment   of  dividends  or  other
distributions,  (ii) the redemption was initiated by the Fund,  (iii) the shares
were purchased  through  programs that collect the redemption fee at the program
level and remit them to the Fund,  or (iv) the  shares  were  purchased  through
programs that the Adviser determines to have appropriate anti-short-term trading
policies  in place or as to which  the  Adviser  has  received  assurances  that
look-through  redemption  fee  procedures or effective  anti-short-term  trading
policies and procedures are in place.


                                       12

THE GAMCO GROWTH FUND
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
================================================================================

Transactions in shares of beneficial interest were as follows:


                                                             YEAR ENDED                         YEAR ENDED
                                                          DECEMBER 31, 2007                  DECEMBER 31, 2006
                                                    ----------------------------       ----------------------------
                                                       SHARES          AMOUNT            SHARES          AMOUNT
                                                    ----------     -------------       -----------    -------------
                                                               CLASS AAA                         CLASS AAA
                                                    ----------------------------       ----------------------------
                                                                                          
Shares sold .......................................  1,554,938     $  52,014,192         2,450,572    $  71,744,626
Shares redeemed.................................... (6,677,205)     (219,336,568)      (10,762,763)    (315,897,156)
                                                    ----------     -------------       -----------    -------------
  Net decrease..................................... (5,122,267)    $(167,322,376)       (8,312,191)   $(244,152,530)
                                                    ==========     =============       ===========    =============

                                                                CLASS A                           CLASS A
                                                    ----------------------------       ----------------------------
Shares sold .......................................     13,455     $     476,635             1,400    $      40,639
Shares redeemed....................................     (2,938)          (93,040)           (1,881)         (54,763)
                                                    ----------     -------------       -----------    -------------
  Net increase (decrease)..........................     10,517     $     383,595              (481)   $     (14,124)
                                                    ==========     =============       ===========    =============

                                                                CLASS C                           CLASS C
                                                    ----------------------------       ----------------------------
Shares sold .......................................     21,140     $     700,407             2,965    $      85,939
Shares redeemed....................................     (6,006)         (182,660)           (9,040)        (262,541)
                                                    ----------     -------------       -----------    -------------
  Net increase (decrease)..........................     15,134     $     517,747            (6,075)   $    (176,602)
                                                    ==========     =============       ===========    =============


9.  INDEMNIFICATIONS.  The Fund enters into  contracts that contain a variety of
indemnifications.  The Fund's  maximum  exposure  under  these  arrangements  is
unknown.  However, the Fund has not had prior claims or losses pursuant to these
contracts and expects the risk of loss to be remote.

10. OTHER MATTERS.  The Adviser and/or  affiliates  received  subpoenas from the
Attorney General of the State of New York and the SEC requesting  information on
mutual fund share  trading  practices  involving  certain  funds  managed by the
Adviser.  GAMCO  Investors,   Inc.  ("GAMCO"),  the  Adviser's  parent  company,
responded to these  requests for documents and  testimony.  In June 2006,  GAMCO
began discussions with the SEC regarding a possible resolution of their inquiry.
In February  2007,  the Adviser made an offer of  settlement to the staff of the
SEC for  communication  to the Commission for its  consideration to resolve this
matter.  This offer of settlement is subject to agreement regarding the specific
language of the SEC's administrative order and other settlement documents.  On a
separate matter, in September 2005, the Adviser was informed by the staff of the
SEC that the staff may recommend to the Commission that an administrative remedy
and a monetary penalty be sought from the Adviser in connection with the actions
of two of nine closed-end funds managed by the Adviser relating to Section 19(a)
and Rule 19a-1 of the 1940 Act. These provisions require  registered  investment
companies to provide written  statements to shareholders when a dividend is made
from a source other than net investment  income.  While the two closed-end funds
sent annual statements and provided other materials containing this information,
the funds did not send written statements to shareholders with each distribution
in 2002  and  2003.  The  Adviser  believes  that  all of the  funds  are now in
compliance.  The Adviser believes that these matters would have no effect on the
Fund or any material  adverse effect on the Adviser or its ability to manage the
Fund.






                                       13


THE GAMCO GROWTH FUND
FINANCIAL HIGHLIGHTS
================================================================================

Selected data for a share of beneficial  interest  outstanding  throughout  each
period:
 

                           INCOME FROM INVESTMENT OPERATIONS
                         --------------------------------------
                                          Net
              Net Asset               Realized and      Total
  Period        Value,       Net       Unrealized       from
   Ended      Beginning  Investment     Gain on      Investment
December 31   of Period    Loss(a)    Investments    Operations
- -----------   ---------  ----------  -------------   ----------
                                           
CLASS AAA
   2007        $30.62     $(0.16)        $5.71         $5.55
   2006         28.81      (0.05)         1.86          1.81
   2005         26.12      (0.13)         2.82          2.69
   2004         24.95      (0.11)         1.28          1.17
   2003         18.99      (0.14)         6.10          5.96
CLASS A
   2007        $30.63     $(0.08)        $5.63         $5.55
   2006         28.82      (0.06)         1.87          1.81
   2005         26.13      (0.12)         2.81          2.69
   2004(c)      24.95      (0.02)         1.20          1.18
CLASS B
   2007        $29.93     $(0.40)        $5.57         $5.17
   2006         28.38      (0.27)         1.82          1.55
   2005         25.93      (0.32)         2.77          2.45
   2004(c)      24.95      (0.28)         1.26          0.98
CLASS C
   2007        $29.93     $(0.40)        $5.57         $5.17
   2006         28.38      (0.27)         1.82          1.55
   2005         25.93      (0.32)         2.77          2.45
   2004(c)      24.95      (0.21)         1.19          0.98



                                                   RATIOS TO AVERAGE NET ASSETS/SUPPLEMENTAL DATA
                                                 --------------------------------------------------

                             Net Asset           Net Assets
  Period                      Value,               End of       Net                      Portfolio
   Ended       Redemption     End of     Total     Period    Investment    Operating      Turnover
December 31      Fees(a)      Period    Return+  (in 000's)     Loss        Expenses        Rate
- -----------     ---------     -------   -------  ----------  ----------   -----------    ----------
                                                                       

 CLASS AAA
    2007       $0.00(b)      $36.17     18.1%    $  945,068   (0.49)%        1.45%          91%
    2006        0.00(b)       30.62      6.3        956,811   (0.19)         1.44           57
    2005        0.00(b)       28.81     10.3      1,139,640   (0.48)         1.49           39
    2004        0.00(b)       26.12      4.7      1,447,655   (0.46)         1.53           31
    2003          --          24.95     31.4      1,881,457   (0.60)         1.47           42
 CLASS A
    2007       $0.00(b)      $36.18     18.1%    $      707   (0.23)%        1.45%          91%
    2006        0.00(b)       30.63      6.3            276   (0.19)         1.44           57
    2005        0.00(b)       28.82     10.3            274   (0.43)         1.47           39
    2004(c)     0.00(b)       26.13      4.7             73   (0.09)         1.60           31
 CLASS B
    2007       $0.00(b)      $35.10     17.2%    $      339   (1.23)%        2.20%          91%
    2006        0.00(b)       29.93      5.5            289   (0.94)         2.19           57
    2005        0.00(b)       28.38      9.5            274   (1.22)         2.24           39
    2004(c)     0.00(b)       25.93      3.9            250   (1.12)         2.30           31
 CLASS C
    2007       $0.00(b)      $35.10     17.2%    $    1,001   (1.23)%        2.20%          91%
    2006        0.00(b)       29.93      5.5            401   (0.95)         2.19           57
    2005        0.00(b)       28.38      9.5            553   (1.21)         2.23           39
    2004(c)     0.00(b)       25.93      3.9            226   (0.88)         2.37           31


+    Total return  represents  aggregate  total return of a hypothetical  $1,000
     investment at the beginning of the period and sold at the end of the period
     including  reinvestment of  distributions  and does not reflect  applicable
     sales charges.
(a)  Per share amounts have been calculated using the average shares outstanding
     method.
(b)  Amount represents less than $0.005 per share.
(c)  Class A, Class B, and Class C Shares were initially offered on December 31,
     2003.


                 See accompanying notes to financial statements.

                                       14



THE GAMCO GROWTH FUND
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
================================================================================
To the Board of Trustees and Shareholders of
The GAMCO Growth Fund:

In our opinion, the accompanying statement of assets and liabilities,  including
the schedule of  investments,  and the related  statements of operations  and of
changes  in net assets  and the  financial  highlights  present  fairly,  in all
material  respects,  the financial  position of The GAMCO Growth Fund (hereafter
referred to as the "Fund") at December 31, 2007,  the results of its  operations
for the year then ended, the changes in its net assets for each of the two years
in the period then ended and the  financial  highlights  for each of the periods
presented,  in conformity with accounting  principles  generally accepted in the
United States of America.  These financial  statements and financial  highlights
(hereafter referred to as "financial  statements") are the responsibility of the
Fund's  management.  Our  responsibility  is to  express  an  opinion  on  these
financial  statements  based on our  audits.  We  conducted  our audits of these
financial  statements  in accordance  with the  standards of the Public  Company
Accounting Oversight Board (United States). Those standards require that we plan
and perform the audit to obtain reasonable assurance about whether the financial
statements are free of material misstatement.  An audit includes examining, on a
test basis,  evidence  supporting  the amounts and  disclosures in the financial
statements,  assessing the accounting  principles used and significant estimates
made by management, and evaluating the overall financial statement presentation.
We believe  that our  audits,  which  included  confirmation  of  securities  at
December 31, 2007 by  correspondence  with the  custodian,  provide a reasonable
basis for our opinion.


PricewaterhouseCoopers LLP
New York, New York
February 29, 2008





                                       15



THE GAMCO GROWTH FUND
ADDITIONAL FUND INFORMATION (UNAUDITED)
================================================================================

The  business  and affairs of the Fund are managed  under the  direction  of the
Fund's Board of Trustees. Information pertaining to the Trustees and officers of
the Fund is set forth  below.  The Fund's  Statement of  Additional  Information
includes  additional  information  about the Fund's  Trustees and is  available,
without  charge,  upon  request,  by calling  800-GABELLI  (800-422-3554)  or by
writing to The GAMCO Growth Fund at One Corporate Center, Rye, NY 10580-1422.



                         TERM OF         NUMBER OF
NAME, POSITION(S)      OFFICE AND      FUNDS IN FUND
    ADDRESS(1)            LENGTH OF   COMPLEX OVERSEEN     PRINCIPAL OCCUPATION(S)              OTHER DIRECTORSHIPS
     AND AGE          TIME SERVED(2)     BY TRUSTEE        DURING PAST FIVE YEARS                HELD BY TRUSTEE(4)
     -------          --------------     ----------        ----------------------                ------------------
INTERESTED TRUSTEES(3):
- -----------------------
                                                                                        
MARIO J. GABELLI       Since 1992          26       Chairman and Chief Executive Officer of      Director of Morgan Group
Trustee                                             GAMCO Investors, Inc. and Chief Investment   Holdings, Inc. (holding company);
Age: 65                                             Officer - Value Portfolios of Gabelli        Chairman of the Board of LICT
                                                    Funds, LLC and GAMCO Asset Management Inc.;  Corp. (multimedia and
                                                    Director/Trustee or Chief Investment         communication services
                                                    Officer of other registered investment       company)
                                                    companies in the Gabelli/GAMCO Funds
                                                    complex; Chairman and Chief Executive
                                                    Officer of GGCP, Inc.

JOHN D. GABELLI        Since 1995          10       Senior Vice President of Gabelli &           Director of GAMCO
Trustee                                             Company, Inc.                                Investors, Inc.
Age: 63

ANTHONY TORNA, SR.     Since 1987           1       Registered Representative, Maxim Group LLC          --
Trustee                                             from 2002; Investec Ernst & Company,
Age: 81                                             2001-2002; Herzog, Heine & Geduld, Inc.
                                                    through 2000

INDEPENDENT TRUSTEES(5):

ANTHONY J. COLAVITA    Since 1989          35       Partner in the law firm of                          --
Trustee                                             Anthony J. Colavita, P.C.
Age: 72

JAMES P. CONN          Since 1992          16       Former Managing Director and Chief                  --
Trustee                                             Investment Officer of Financial Security
Age: 69                                             Assurance Holdings Ltd. (insurance
                                                    holding company) (1992-1998)

DUGALD A. FLETCHER      1989-1996           2       President, Fletcher & Company, Inc.          Director of Harris and
Trustee               2000-present                                                               Harris Group, Inc.
Age: 78                                                                                          (venture capital)

ROBERT J. MORRISSEY    Since 2001           6       Partner in the law firm of Morrissey,               --
Trustee                                             Hawkins & Lynch
Age: 68

ANTHONY R. PUSTORINO   Since 1987          14       Certified Public Accountant; Professor       Director of The LGL Group, Inc.
Trustee                                             Emeritus, Pace University                    (diversified manufacturing)
Age: 82

ANTHONIE C. VAN EKRIS   1987-1989          19       Chairman of BALMAC International, Inc.              --
Trustee               1992-present                  (commodities and futures trading)
Age: 73

SALVATORE J. ZIZZA      1987-1996          26       Chairman of Zizza & Co., Ltd.                Director of Hollis-Eden
Trustee               2000-present                  (consulting)                                 Pharmaceuticals (biotechnology);
Age: 62                                                                                          Director of Earl Scheib, Inc.
                                                                                                 (automotive services)


                                       16


THE GAMCO GROWTH FUND
ADDITIONAL FUND INFORMATION (CONTINUED) (UNAUDITED)
================================================================================



                          TERM OF
NAME, POSITION(S)       OFFICE AND
    ADDRESS(1)           LENGTH OF                                   PRINCIPAL OCCUPATION(S)
     AND AGE           TIME SERVED(2)                                DURING PAST FIVE YEARS
     -------           --------------                                ----------------------
OFFICERS:
- ---------
                                                    
BRUCE N. ALPERT        Since 1994          Executive Vice President and Chief Operating Officer of Gabelli Funds, LLC
President                                  since 1988 and an officer of most of the registered investment companies in
Age: 56                                    the Gabelli/GAMCO Funds complex. Director and President of Gabelli Advisers,
                                           Inc. since 1998

JAMES E. MCKEE         Since 1995          Vice President, General Counsel, and Secretary of GAMCO Investors, Inc.
Secretary                                  since 1999 and GAMCO Asset Management Inc. since 1993; Secretary of all of
Age: 44                                    the registered investment companies in the Gabelli/GAMCO Funds complex

AGNES MULLADY          Since 2006          Vice President of Gabelli Funds, LLC since 2007; Officer of all of the
Treasurer                                  registered investment companies in the Gabelli/GAMCO Funds complex; Senior
Age: 49                                    Vice President of U.S. Trust Company, N.A. and Treasurer and Chief Financial
                                           Officer of Excelsior Funds from 2004 through 2005; Chief Financial Officer
                                           of AMIC Distribution Partners from 2002 through 2004; Controller of Reserve
                                           Management Corporation and Reserve Partners, Inc. and Treasurer of Reserve
                                           Funds from 2000 through 2002

PETER D. GOLDSTEIN     Since 2004          Director of Regulatory Affairs at GAMCO Investors, Inc. since 2004;
Chief Compliance Officer                   Chief Compliance Officer of all of the registered investment companies in the
Age: 54                                    Gabelli/GAMCO Funds complex; Vice President of Goldman Sachs Asset Management
                                           from 2000 through 2004


- ---------------------------
1    Address: One Corporate Center, Rye, NY 10580-1422, unless otherwise noted.
2    Each Trustee will hold office for an indefinite  term until the earliest of
     (i) the next  meeting of  shareholders,  if any,  called for the purpose of
     considering  the  election  or  re-election  of such  Trustee and until the
     election and qualification of his or her successor, if any, elected at such
     meeting,  or (ii) the date a Trustee  resigns or  retires,  or a Trustee is
     removed by the Board of Trustees or  shareholders,  in accordance  with the
     Fund's By-Laws and Declaration of Trust.  Each officer will hold office for
     an indefinite term until the date he or she resigns or retires or until his
     or her successor is elected and qualified.
3    "Interested person" of the Fund as defined in the 1940 Act. Messrs. Gabelli
     are each  considered an "interested  person"  because of their  affiliation
     with Gabelli Funds, LLC which acts as the Fund's  investment  adviser.  Mr.
     Torna is considered an interested  person because he is a registered broker
     with a firm to which the Fund  Complex  (but not the Fund)  pays  brokerage
     commissions. Mario J. Gabelli and John D. Gabelli are brothers.
4    This column includes only  directorships of companies required to report to
     the SEC under the Securities  Exchange Act of 1934, as amended (i.e. public
     companies) or other investment companies registered under the 1940 Act.
5    Trustees  who are  not  interested  persons  are  considered  "Independent"
     Trustees.

                                       17

- --------------------------------------------------------------------------------
     GABELLI/GAMCO FUNDS AND YOUR PERSONAL PRIVACY
================================================================================

     WHO ARE WE?
     The  Gabelli/GAMCO  Funds  are  investment  companies  registered  with the
     Securities  and Exchange  Commission  under the  Investment  Company Act of
     1940.  We are managed by Gabelli  Funds,  LLC and Gabelli  Advisers,  Inc.,
     which are affiliated with GAMCO Investors,  Inc. GAMCO Investors, Inc. is a
     publicly  held  company  that  has  subsidiaries  that  provide  investment
     advisory or brokerage services for a variety of clients.

     WHAT KIND OF NON-PUBLIC INFORMATION DO WE COLLECT ABOUT YOU IF YOU BECOME A
     SHAREHOLDER?
     If you apply to open an  account  directly  with us,  you will be giving us
     some non-public  information about yourself.  The non-public information we
     collect about you is:

     o  INFORMATION  YOU GIVE US ON YOUR  APPLICATION  FORM.  This could include
        your name,  address,  telephone  number,  social security  number,  bank
        account number, and other information.

     o  INFORMATION  ABOUT YOUR  TRANSACTIONS WITH US, ANY TRANSACTIONS WITH OUR
        AFFILIATES,  AND  TRANSACTIONS  WITH  THE  ENTITIES  WE HIRE TO  PROVIDE
        SERVICES TO YOU.  This would include  information  about the shares that
        you buy or redeem.  If we hire someone else to provide  services--like a
        transfer  agent--we will also have  information  about the  transactions
        that you conduct through them.

     WHAT INFORMATION DO WE DISCLOSE AND TO WHOM DO WE DISCLOSE IT?
     We do not disclose any non-public personal  information about our customers
     or former  customers  to anyone  other  than our  affiliates,  our  service
     providers who need to know such information,  and as otherwise permitted by
     law. If you want to find out what the law permits, you can read the privacy
     rules adopted by the Securities and Exchange Commission. They are in volume
     17 of the Code of Federal Regulations, Part 248. The Commission often posts
     information about its regulations on its web site, www.sec.gov.

     WHAT DO WE DO TO PROTECT YOUR PERSONAL INFORMATION?
     We restrict  access to  non-public  personal  information  about you to the
     people who need to know that  information  in order to provide  services to
     you or the Fund and to ensure that we are complying with the laws governing
     the securities business. We maintain physical,  electronic,  and procedural
     safeguards to keep your personal information confidential.
- --------------------------------------------------------------------------------


                             GABELLI FAMILY OF FUNDS

VALUE _______________________________________
GABELLI ASSET FUND
Seeks to invest primarily in a diversified portfolio of common stocks selling at
significant  discounts  to  their  private  market  value.  The  Fund's  primary
objective is growth of capital. (MULTICLASS)
                                        PORTFOLIO MANAGER: MARIO J. GABELLI, CFA

GABELLI BLUE CHIP VALUE FUND
Seeks long term growth of capital  through  investment  primarily  in the common
stocks of established  companies which are temporarily out of favor.  The fund's
objective  is to  identify a catalyst or sequence of events that will return the
company to a higher value.
(MULTICLASS)                              PORTFOLIO MANAGER: BARBARA MARCIN, CFA

GAMCO WESTWOOD EQUITY FUND
Seeks to invest  primarily in the common stock of  well seasoned  companies that
have  recently  reported  positive  earnings  surprises  and are  trading  below
Westwood's  proprietary  growth rate estimates.  The Fund's primary objective is
capital appreciation.
(MULTICLASS)                                   PORTFOLIO MANAGER: SUSAN M. BYRNE

FOCUSED VALUE _______________________________
GABELLI VALUE FUND
Seeks to invest in  securities  of  companies  believed to be  undervalued.  The
Fund's primary objective is long-term capital appreciation. (MULTICLASS)
                                        PORTFOLIO MANAGER: MARIO J. GABELLI, CFA

SMALL CAP VALUE _____________________________
GABELLI SMALL CAP FUND
Seeks  to  invest  primarily  in  common  stock  of  smaller  companies  (market
capitalizations  at the time of investment of $2 billion  or less)  believed  to
have rapid revenue and earnings growth potential. The  Fund's primary  objective
is capital appreciation.
(MULTICLASS)                            PORTFOLIO MANAGER: MARIO J. GABELLI, CFA

GAMCO WESTWOOD SMALLCAP EQUITY FUND
Seeks to invest primarily in smaller  capitalization  equity securities - market
caps of $2.5 billion or less. The Fund's primary  objective is long-term capital
appreciation. (MULTICLASS)            PORTFOLIO MANAGER: ELIZABETH M. LILLY, CFA

GABELLI WOODLAND SMALL CAP VALUE FUND
Seeks to invest  primarily  in the common  stocks of smaller  companies  (market
capitalizations generally less than $3.0  billion) believed  to  be  undervalued
with shareholder oriented management teams that are employing strategies to grow
the company's value. The Fund's primary objective is capital appreciation.
(MULTICLASS)                          PORTFOLIO MANAGER: ELIZABETH M. LILLY, CFA

GROWTH ______________________________________
GAMCO GROWTH FUND
Seeks to invest  primarily in large cap stocks believed to have  favorable,  yet
undervalued,  prospects for earnings  growth.  The Fund's  primary  objective is
capital appreciation. (MULTICLASS)        PORTFOLIO MANAGER: HOWARD F. WARD, CFA

GAMCO INTERNATIONAL GROWTH FUND
Seeks to invest in the equity  securities  of  foreign  issuers  with  long-term
capital   appreciation    potential.    The   Fund   offers   investors   global
diversification. (MULTICLASS)                    PORTFOLIO MANAGER: CAESAR BRYAN

AGGRESSIVE GROWTH ___________________________
GAMCO GLOBAL GROWTH FUND
Seeks capital appreciation through a disciplined  investment program focusing on
the globalization and interactivity of the world's marketplace. The Fund invests
in  companies  at the  forefront  of  accelerated  growth.  The  Fund's  primary
objective is capital appreciation. (MULTICLASS)                     TEAM MANAGED

MICRO-CAP ___________________________________
GAMCO WESTWOOD MIGHTY MITES(SM) FUND
Seeks to invest in micro-cap companies that have market  capitalizations of $300
million or less. The Fund's primary objective is long-term capital appreciation.
(MULTICLASS)                                                        TEAM MANAGED

EQUITY INCOME _______________________________
GABELLI EQUITY INCOME FUND
Seeks to invest primarily in equity securities with above average market yields.
The Fund pays monthly  dividends  and seeks a high level of total return with an
emphasis on income. (MULTICLASS)        PORTFOLIO MANAGER: MARIO J. GABELLI, CFA

GAMCO WESTWOOD BALANCED FUND
Seeks to invest in a balanced and diversified portfolio of stocks and bonds. The
Fund's primary objective is both capital appreciation and current income.
(MULTICLASS)                            CO-PORTFOLIO MANAGERS: SUSAN M. BYRNE
                                                               MARK FREEMAN, CFA

GAMCO WESTWOOD INCOME FUND
Seeks to  provide   a high level of  current income as well as long-term capital
appreciation  by  investing  in   income   producing  equity  and  fixed  income
securities. (MULTICLASS)                  PORTFOLIO MANAGER: BARBARA MARCIN, CFA

SPECIALTY EQUITY ____________________________
GAMCO GLOBAL CONVERTIBLE SECURITIES FUND
Seeks to invest  principally in bonds and preferred stocks which are convertible
into  common  stock of  foreign  and  domestic  companies.  The  Fund's  primary
objective is total return  through a combination  of current  income and capital
appreciation. (MULTICLASS)                                          TEAM MANAGED

GAMCO GLOBAL OPPORTUNITY FUND
Seeks to invest in common stock of companies which have rapid growth in revenues
and  earnings  and  potential  for above  average  capital  appreciation  or are
undervalued. The Fund's primary objective is capital appreciation.
(MULTICLASS)                                                        TEAM MANAGED

GABELLI SRI FUND
Seeks to invest in common and preferred stocks of companies that meet the Fund's
guidelines for social responsibility at the time of investment, looking to avoid
companies in tobacco,  alcohol,  and gaming,  defense/weapons  contractors,  and
manufacturers  of  abortifacients.  The  Fund's  primary  objective  is  capital
appreciation. (MULTICLASS)           PORTFOLIO MANAGER: CHRISTOPHER C. DESMARAIS

SECTOR ______________________________________
GAMCO GLOBAL TELECOMMUNICATIONS FUND
Seeks to invest in telecommunications companies throughout the world - targeting
undervalued  companies with strong  earnings and cash flow dynamics.  The Fund's
primary objective is capital appreciation. (MULTICLASS)             TEAM MANAGED

GAMCO GOLD FUND
Seeks to invest in a global  portfolio of equity  securities  of gold mining and
related  companies.  The Fund's  objective  is long-term  capital  appreciation.
Investment in gold stocks is considered speculative and is affected by a variety
of worldwide economic, financial, and political factors. (MULTICLASS)
                                                 PORTFOLIO MANAGER: CAESAR BRYAN

GABELLI UTILITIES FUND
Seeks to provide a high level of total return  through a combination  of capital
appreciation and current income. (MULTICLASS)                       TEAM MANAGED

MERGER AND ARBITRAGE ________________________
GABELLI ABC FUND
Seeks to invest in securities with attractive  opportunities for appreciation or
investment  income.  The Fund's  primary  objective  is total  return in various
market conditions without excessive risk of capital loss.
(NO-LOAD)                               PORTFOLIO MANAGER: MARIO J. GABELLI, CFA

CONTRARIAN __________________________________
GAMCO MATHERS FUND
Seeks  long-term  capital  appreciation  in various  market  conditions  without
excessive risk of capital loss. (NO-LOAD)
                                        PORTFOLIO MANAGER: HENRY VAN DER EB, CFA

COMSTOCK CAPITAL VALUE FUND
Seeks capital  appreciation and current income.  The Fund may use either long or
short positions to achieve its objective.
(MULTICLASS)                               PORTFOLIO MANAGER: MARTIN WEINER, CFA

COMSTOCK STRATEGY FUND
The Fund emphasizes investments in debt securities,  which maximize total return
in light of credit risk,  interest rate risk, and the risk  associated  with the
length of maturity of  debt instruments. (MULTICLASS)
                                           PORTFOLIO MANAGER: MARTIN WEINER, CFA

FIXED INCOME ________________________________
GAMCO WESTWOOD INTERMEDIATE BOND FUND
Seeks to invest in a diversified portfolio of bonds with various maturities. The
Fund's primary objective is total return.
(MULTICLASS)                                PORTFOLIO MANAGER: MARK FREEMAN, CFA

CASH MANAGEMENT-MONEY MARKET ________________
GABELLI U.S. TREASURY MONEY MARKET FUND
Seeks to invest exclusively in short-term U.S. Treasury  securities.  The Fund's
primary  objective  is to  provide  high  current  income  consistent  with  the
preservation of principal and liquidity. (NO-LOAD)
                                             PORTFOLIO MANAGER: JUDITH A. RANERI

AN INVESTMENT IN THE ABOVE MONEY MARKET FUND  IS NEITHER  INSURED NOR GUARANTEED
BY THE FEDERAL DEPOSIT INSURANCE CORPORATION OR ANY GOVERNMENT AGENCY.  ALTHOUGH
THE FUND SEEKS TO PRESERVE THE VALUE OF YOUR  INVESTMENT AT $1.00 PER SHARE,  IT
IS POSSIBLE TO LOSE MONEY BY INVESTING IN THE FUND.

THE  FUNDS MAY  INVEST IN  FOREIGN SECURITIES WHICH INVOLVE RISKS NOT ORDINARILY
ASSOCIATED WITH INVESTMENTS IN DOMESTIC ISSUES,  INCLUDING CURRENCY FLUCTUATION,
ECONOMIC, AND POLITICAL RISKS.

TO RECEIVE A PROSPECTUS, CALL 800-GABELLI (422-3554). INVESTORS SHOULD CAREFULLY
  CONSIDER THE INVESTMENT OBJECTIVES, RISKS, CHARGES, AND EXPENSES OF THE FUND
           BEFORE INVESTING. THE PROSPECTUS CONTAINS MORE INFORMATION
   ABOUT THIS AND OTHER MATTERS AND SHOULD BE READ CAREFULLY BEFORE INVESTING.



                              THE GAMCO GROWTH FUND
                              One Corporate Center
                            Rye, New York 10580-1422
                                   800-GABELLI
                                  800-422-3554
                                FAX: 914-921-5118
                            WEBSITE: WWW.GABELLI.COM
                            E-MAIL: INFO@GABELLI.COM
              Net Asset Value per share available daily by calling
                          800-GABELLI after 6:00 P.M.

                                BOARD OF TRUSTEES
Mario J. Gabelli, CFA                  Robert J. Morrissey
CHAIRMAN AND CHIEF                     ATTORNEY-AT-LAW
EXECUTIVE OFFICER                      MORRISSEY, HAWKINS & LYNCH
GAMCO INVESTORS, INC.

Anthony J. Colavita                    Anthony R. Pustorino
ATTORNEY-AT-LAW                        CERTIFIED PUBLIC ACCOUNTANT,
ANTHONY J. COLAVITA, P.C.              PROFESSOR EMERITUS
                                       PACE UNIVERSITY

James P. Conn                          Anthony Torna
FORMER CHIEF INVESTMENT OFFICER        MAXIM GROUP LLC
FINANCIAL SECURITY ASSURANCE
HOLDINGS LTD.

Dugald A. Fletcher                     Anthonie C. van Ekris
PRESIDENT                              CHAIRMAN
FLETCHER & COMPANY, INC.               BALMAC INTERNATIONAL, INC.

John D. Gabelli                        Salvatore J. Zizza
SENIOR VICE PRESIDENT                  CHAIRMAN
GABELLI & COMPANY, INC.                ZIZZA & CO., LTD.

                         OFFICERS AND PORTFOLIO MANAGER
Bruce N. Alpert                        Howard F. Ward, CFA
PRESIDENT                              PORTFOLIO MANAGER

James E. McKee                         Peter D. Goldstein
SECRETARY                              CHIEF COMPLIANCE OFFICER

Agnes Mullady
TREASURER
                                   DISTRIBUTOR
                             Gabelli & Company, Inc.

                  CUSTODIAN, TRANSFER AGENT, AND DIVIDEND AGENT
                       State Street Bank and Trust Company

                                  LEGAL COUNSEL
                    Skadden, Arps, Slate, Meagher & Flom LLP

- --------------------------------------------------------------------------------
This report is submitted for the general  information of the shareholders of The
GAMCO  Growth  Fund.  It is  not  authorized  for  distribution  to  prospective
investors unless preceded or accompanied by an effective prospectus.
- --------------------------------------------------------------------------------
GAB406Q407SR



                                                                           GAMCO


                                                 THE
                                                 GAMCO
                                                 GROWTH
                                                 FUND






                                                                   ANNUAL REPORT
                                                               DECEMBER 31, 2007




ITEM 2. CODE OF ETHICS.

     (a)  The  registrant,  as of the end of the period  covered by this report,
          has  adopted  a code  of  ethics  that  applies  to  the  registrant's
          principal executive officer,  principal  financial officer,  principal
          accounting  officer  or  controller,  or  persons  performing  similar
          functions, regardless of whether these individuals are employed by the
          registrant or a third party.

     (c)  There  have been no  amendments,  during  the  period  covered by this
          report,  to a  provision  of the code of ethics  that  applies  to the
          registrant's principal executive officer, principal financial officer,
          principal  accounting  officer or  controller,  or persons  performing
          similar  functions,   regardless  of  whether  these  individuals  are
          employed by the  registrant or a third party,  and that relates to any
          element of the code of ethics description.

     (d)  The  registrant  has not granted any  waivers,  including  an implicit
          waiver,  from a provision  of the code of ethics  that  applies to the
          registrant's principal executive officer, principal financial officer,
          principal  accounting  officer or  controller,  or persons  performing
          similar  functions,   regardless  of  whether  these  individuals  are
          employed by the  registrant  or a third party,  that relates to one or
          more  of  the  items  set  forth  in  paragraph  (b)  of  this  item's
          instructions.


ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT.

As of the end of the period  covered by the report,  the  registrant's  Board of
Trustees has  determined  that Anthony R.  Pustorino is qualified to serve as an
audit committee  financial  expert serving on its audit committee and that he is
"independent," as defined by Item 3 of Form N-CSR.


ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES.

AUDIT FEES

     (a)  The  aggregate  fees billed for each of the last two fiscal  years for
          professional  services  rendered by the principal  accountant  for the
          audit of the registrant's annual financial statements or services that
          are normally  provided by the accountant in connection  with statutory
          and  regulatory  filings or  engagements  for those  fiscal  years are
          $43,200 for 2006 and $45,000 for 2007.

AUDIT-RELATED FEES

     (b)  The  aggregate  fees  billed in each of the last two fiscal  years for
          assurance and related  services by the principal  accountant  that are
          reasonably related to the performance of the audit of the registrant's
          financial  statements and are not reported under paragraph (a) of this
          Item are $0 for 2006 and $0 for 2007.


TAX FEES

     (c)  The  aggregate  fees  billed in each of the last two fiscal  years for
          professional  services  rendered by the principal  accountant  for tax
          compliance,  tax  advice,  and tax  planning  are  $3,100 for 2006 and
          $4,350 for 2007. Tax fees represent tax compliance  services  provided
          in connection with the review of the Registrant's tax returns.

ALL OTHER FEES

     (d)  The  aggregate  fees  billed in each of the last two fiscal  years for
          products and services provided by the principal accountant, other than
          the services  reported in paragraphs  (a) through (c) of this Item are
          $0 for 2006 and $0 for 2007.

  (e)(1)  Disclose the audit committee's  pre-approval policies  and  procedures
          described in paragraph (c)(7) of Rule 2-01 of Regulation S-X.

          Pre-Approval   Policies   and   Procedures.    The   Audit   Committee
          ("Committee") of the registrant is responsible for  pre-approving  (i)
          all audit and  permissible  non-audit  services  to be provided by the
          independent  registered  public  accounting firm to the registrant and
          (ii)  all  permissible  non-audit  services  to  be  provided  by  the
          independent registered public accounting firm to the Adviser,  Gabelli
          Funds,  LLC, and any affiliate of Gabelli Funds,  LLC ("Gabelli") that
          provides services to the registrant (a "Covered Services Provider") if
          the independent registered public accounting firm's engagement related
          directly to the operations and financial  reporting of the registrant.
          The Committee may delegate its  responsibility to pre-approve any such
          audit and  permissible  non-audit  services to the  Chairperson of the
          Committee,  and the Chairperson  must report to the Committee,  at its
          next regularly scheduled meeting after the Chairperson's  pre-approval
          of such  services,  his or her  decision(s).  The  Committee  may also
          establish   detailed   pre-approval   policies  and   procedures   for
          pre-approval  of such services in  accordance  with  applicable  laws,
          including  the   delegation   of  some  or  all  of  the   Committee's
          pre-approval responsibilities to the other persons (other than Gabelli
          or the  registrant's  officers).  Pre-approval by the Committee of any
          permissible  non-audit  services  is not  required so long as: (i) the
          permissible  non-audit  services were not recognized by the registrant
          at the time of the engagement to be non-audit services;  and (ii) such
          services are promptly  brought to the  attention of the  Committee and
          approved by the Committee or  Chairperson  prior to the  completion of
          the audit.


   (e)(2) The  percentage  of  services  described  in  each of  paragraphs  (b)
          through  (d) of this Item that were  approved  by the audit  committee
          pursuant to paragraph  (c)(7)(i)(C) of Rule 2-01 of Regulation S-X are
          as follows:

                           (b) Not applicable

                           (c) 100%

                           (d) Not applicable

     (f)  The  percentage  of  hours  expended  on  the  principal  accountant's
          engagement to audit the registrant's financial statements for the most
          recent fiscal year that were  attributed to work  performed by persons
          other than the principal accountant's  full-time,  permanent employees
          was (0%) zero percent.


     (g)  The aggregate non-audit fees billed by the registrant's accountant for
          services rendered to the registrant,  and rendered to the registrant's
          investment  adviser  (not  including  any  sub-adviser  whose  role is
          primarily  portfolio  management and is subcontracted with or overseen
          by another investment adviser), and any entity controlling, controlled
          by, or under common  control with the adviser  that  provides  ongoing
          services to the  registrant  for each of the last two fiscal  years of
          the registrant was $0 for 2006 and $0 for 2007.

     (h)  The  registrant's  audit  committee  of the  board  of  directors  has
          considered  whether the  provision  of  non-audit  services  that were
          rendered to the  registrant's  investment  adviser (not  including any
          sub-adviser  whose  role  is  primarily  portfolio  management  and is
          subcontracted with or overseen by another investment adviser), and any
          entity  controlling,  controlled  by, or under common control with the
          investment  adviser that provides  ongoing  services to the registrant
          that were not  pre-approved  pursuant to paragraph  (c)(7)(ii) of Rule
          2-01 of Regulation S-X is compatible  with  maintaining  the principal
          accountant's independence.

ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS.

Not applicable.


ITEM 6. SCHEDULE OF INVESTMENTS.

Schedule of Investments in securities of unaffiliated issuers as of the close of
the  reporting  period is included as part of the report to  shareholders  filed
under Item 1 of this form.


ITEM 7. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END
        MANAGEMENT INVESTMENT COMPANIES.

Not applicable.


ITEM 8. PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

Not applicable.


ITEM 9. PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT INVESTMENT
        COMPANY AND AFFILIATED PURCHASERS.

Not applicable.



ITEM 10. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

There have been no material  changes to the procedures by which the shareholders
may  recommend  nominees  to the  registrant's  Board of  Trustees,  where those
changes were  implemented  after the  registrant  last  provided  disclosure  in
response to the  requirements  of Item  407(c)(2)(iv)  of Regulation S-K (17 CFR
229.407) (as required by Item  22(b)(15) of Schedule 14A (17 CFR  240.14a-101)),
or this Item.


ITEM 11. CONTROLS AND PROCEDURES.

(a)  The registrant's  principal executive and principal financial officers,  or
     persons performing similar functions,  have concluded that the registrant's
     disclosure  controls and  procedures (as defined in Rule 30a-3(c) under the
     Investment  Company  Act of 1940,  as  amended  (the  "1940  Act")  (17 CFR
     270.30a-3(c)))  are  effective,  as of a date  within 90 days of the filing
     date of the report that includes the disclosure required by this paragraph,
     based on their evaluation of these controls and procedures required by Rule
     30a-3(b) under the 1940 Act (17 CFR  270.30a-3(b))  and Rules  13a-15(b) or
     15d-15(b)  under the  Securities  Exchange Act of 1934,  as amended (17 CFR
     240.13a-15(b) or 240.15d-15(b)).


(b)  There were no changes in the  registrant's  internal control over financial
     reporting  (as  defined  in  Rule  30a-3(d)  under  the  1940  Act  (17 CFR
     270.30a-3(d))  that occurred during the registrant's  second fiscal quarter
     of the period  covered by this report that has materially  affected,  or is
     reasonably likely to materially affect,  the registrant's  internal control
     over financial reporting.


ITEM 12. EXHIBITS.

(a)(1) Code  of  ethics,  or any  amendment  thereto,  that  is the  subject  of
       disclosure required by Item 2 is attached hereto.

(a)(2) Certifications  pursuant  to Rule 30a-2(a) under the 1940 Act and Section
       302 of the Sarbanes-Oxley Act of 2002 are attached hereto.

(a)(3) Not applicable.

(b)    Certifications  pursuant  to Rule 30a-2(b) under the 1940 Act and Section
       906 of the Sarbanes-Oxley Act of 2002 are attached hereto.







                                   SIGNATURES

Pursuant to the  requirements  of the  Securities  Exchange  Act of 1934 and the
Investment Company Act of 1940, the registrant has duly caused this report to be
signed on its behalf by the undersigned, thereunto duly authorized.

(registrant)                The GAMCO Growth Fund
            --------------------------------------------------------------------

By (Signature and Title)*  /s/ Bruce N. Alpert
                         -------------------------------------------------------
                           Bruce N. Alpert, Principal Executive Officer


Date     03/05/08
    ----------------------------------------------------------------------------


Pursuant to the  requirements  of the  Securities  Exchange  Act of 1934 and the
Investment  Company  Act of  1940,  this  report  has been  signed  below by the
following  persons on behalf of the  registrant and in the capacities and on the
dates indicated.


By (Signature and Title)*  /s/ Bruce N. Alpert
                         -------------------------------------------------------
                           Bruce N. Alpert, Principal Executive Officer


Date     03/05/08
    ----------------------------------------------------------------------------


By (Signature and Title)*  /s/ Agnes Mullady
                         -------------------------------------------------------
                           Agnes Mullady, Principal Financial Officer and
                           Treasurer


Date     03/05/08
    ----------------------------------------------------------------------------



* Print the name and title of each signing officer under his or her signature.