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 811-08560
                                                    -----------
                      GAMCO International Growth Fund, Inc.
         --------------------------------------------------------------
               (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: June 30, 2006
                                              ---------------


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.


                      GAMCO INTERNATIONAL GROWTH FUND, INC.

                               SEMI-ANNUAL REPORT

                                  JUNE 30, 2006






TO OUR SHAREHOLDERS,

      During the second  quarter of 2006,  the GAMCO  International  Growth Fund
(the  "Fund")  declined  0.1% while the  Morgan  Stanley  Capital  International
("MSCI")  Europe,  Australasia  and Far East  ("EAFE")  Index  rose 0.9% and the
Lipper  International  Multi-Cap  Growth Fund  Average  declined  1.4%.  For the
six-month period ended June 30, 2006, the Fund was up 7.8% versus gains of 10.5%
and 7.8% for the MSCI EAFE Index and the Lipper  International  Multi-Cap Growth
Fund Average, respectively.

      Enclosed are the financial  statements and the investment  portfolio as of
June 30, 2006.

COMPARATIVE RESULTS


- ----------------------------------------------------------------------------------------------------------------------
                                   AVERAGE ANNUAL RETURNS THROUGH JUNE 30, 2006 (A)
                                                                                                               Since
                                                             Year to                                         Inception
                                                   Quarter    Date     1 Year    3 Year    5 Year   10 Year  (6/30/95)
- ----------------------------------------------------------------------------------------------------------------------
                                                                                         
  GAMCO INTERNATIONAL GROWTH FUND
    CLASS AAA ..................................  (0.09)%    7.80%     23.19%    21.46%     7.91%   7.88%     9.37%

  MSCI EAFE Index ..............................   0.94     10.50      27.07     24.43     10.44    6.75      7.36
  Lipper International Multi-Cap
    Growth Fund Average ........................  (1.44)     7.80      26.34     21.82      8.06    6.57      7.10

  Class A ......................................  (0.13)     7.77      23.17     21.44      8.20    8.02      9.51
                                                  (5.88)(b)  1.58(b)   16.09(b)  19.07(b)   6.92(b) 7.39(b)   8.92(b)
  Class B ......................................  (0.28)     7.38      22.22     20.55      7.06    7.44      8.96
                                                  (5.26)(c)  2.38(c)   17.22(c)  19.86(c)   6.76(c) 7.44(c)   8.96(c)
  Class C ......................................  (0.32)     7.35      22.26     20.23      6.91    7.35      8.88
                                                  (1.32)(c)  6.35(c)   21.26(c)  20.23(c)   6.91(c) 7.35(c)   8.88(c)

- --------------------------------------------------------------------------------
(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.
    INVESTING IN FOREIGN  SECURITIES  INVOLVES RISKS NOT  ORDINARILY  ASSOCIATED
    WITH  INVESTMENTS  IN  DOMESTIC  ISSUES,   INCLUDING  CURRENCY  FLUCTUATION,
    ECONOMIC,  AND POLITICAL  RISKS.  THE CLASS AAA SHARES' NET ASSET VALUES ARE
    USED TO CALCULATE PERFORMANCE FOR THE PERIODS PRIOR TO THE ISSUANCE OF CLASS
    A SHARES,  CLASS B SHARES,  AND CLASS C SHARES ON JULY 25, 2001, JANUARY 17,
    2001, AND DECEMBER 17, 2000,  RESPECTIVELY.  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 MSCI EAFE
    INDEX IS AN UNMANAGED  INDICATOR OF INTERNATIONAL  STOCK MARKET PERFORMANCE,
    WHILE THE LIPPER  INTERNATIONAL  MULTI-CAP  GROWTH FUND AVERAGE REFLECTS THE
    AVERAGE PERFORMANCE OF MUTUAL FUNDS CLASSIFIED IN THIS PARTICULAR  CATEGORY.
    DIVIDENDS ARE CONSIDERED REINVESTED.
(b) INCLUDES THE EFFECT OF THE MAXIMUM  5.75% SALES  CHARGE AT THE  BEGINNING OF
    THE PERIOD.
(c) INCLUDES THE EFFECT OF THE  APPLICABLE  CONTINGENT  DEFERRED SALES CHARGE AT
    THE END OF THE  PERIOD  SHOWN FOR CLASS B AND CLASS C SHARES,  RESPECTIVELY.
    CLASS B SHARES ARE NOT AVAILABLE FOR NEW PURCHASES.
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
  We have  separated  the  portfolio  manager's  commentary  from the  financial
  statements and investment  portfolio due to corporate  governance  regulations
  stipulated by the Sarbanes-Oxley Act of 2002. We have done this to ensure that
  the  content  of the  portfolio  manager's  commentary  is  unrestricted.  The
  financial  statements and investment  portfolio are mailed separately from the
  commentary.  Both the commentary and the financial  statements,  including the
  portfolio   of   investments,   will   be   available   on  our   website   at
  www.gabelli.com/funds.
- --------------------------------------------------------------------------------




GAMCO INTERNATIONAL GROWTH FUND, INC.
DISCLOSURE OF FUND EXPENSES (UNAUDITED)
For the Six Month Period from January 1, 2006 through June 30, 2006
                                                                   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 six months ended June 30, 2006.

                  Beginning         Ending    Annualized    Expenses
                Account Value   Account Value   Expense   Paid During
                  01/01/06        06/30/06       Ratio      Period*
- --------------------------------------------------------------------------------
GAMCO INTERNATIONAL GROWTH FUND, INC.
- --------------------------------------------------------------------------------
ACTUAL FUND RETURN
Class AAA          $1,000.00     $1,078.00       1.78%      $ 9.17
Class A            $1,000.00     $1,077.70       1.78%      $ 9.17
Class B            $1,000.00     $1,073.80       2.53%      $13.01
Class C            $1,000.00     $1,073.50       2.53%      $13.01

HYPOTHETICAL 5% RETURN
Class AAA          $1,000.00     $1,015.97       1.78%      $ 8.90
Class A            $1,000.00     $1,015.97       1.78%      $ 8.90
Class B            $1,000.00     $1,012.25       2.53%      $12.62
Class C            $1,000.00     $1,012.25       2.53%      $12.62

* 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.


                                       2


SUMMARY OF PORTFOLIO HOLDINGS (UNAUDITED)

The following table presents portfolio holdings as a percent of total net assets
as of June 30, 2006:


GAMCO INTERNATIONAL GROWTH FUND, INC.

Health Care .......................................  16.4%
Consumer Products .................................  11.2%
Energy and Utilities ..............................   9.7%
Financial Services: Banks .........................   9.3%
Building and Construction .........................   6.7%
Food and Beverage .................................   6.5%
Metals and Mining .................................   6.2%
Entertainment .....................................   5.5%
Retail ............................................   5.0%
Business Services .................................   3.8%
Financial Services: Insurance .....................   3.8%
Broadcasting ......................................   3.7%
Specialty Chemicals ...............................   2.8%
Financial Services: Brokerage .....................   2.8%
Hotels and Gaming .................................   2.8%
Electronics .......................................   1.5%
Computer Software and Services ....................   1.3%
Real Estate .......................................   0.8%
U.S. Government Obligations .......................   0.4%
Other Assets and Liabilities (Net) ................  (0.2)%
                                                    -----
                                                    100.0%
                                                    =====


THE FUND FILES A COMPLETE  SCHEDULE OF PORTFOLIO  HOLDINGS  WITH 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  MARCH 31,  2006.  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  COMMISSION'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, (i)
by calling 800-GABELLI  (800-422-3554);  (ii) by writing to The Gabelli Funds at
One Corporate Center,  Rye, NY 10580-1422;  and (iii) by visiting the Securities
and Exchange Commission's website at www.sec.gov.

                                       3



GAMCO INTERNATIONAL GROWTH FUND, INC.
SCHEDULE OF INVESTMENTS -- JUNE 30, 2006 (UNAUDITED)
- --------------------------------------------------------------------------------

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

                  COMMON STOCKS -- 99.8%
                  BROADCASTING -- 3.7%
   85,000         Mediaset SpA .............       $   695,539      $ 1,002,392
   25,000         Modern Times Group AB,Cl .B+         639,471        1,314,829
   25,000         Modern Times Group AB,
                    Cl. B, Redeemable Shares+           33,656           60,062
                                                   -----------      -----------
                                                     1,368,666        2,377,283
                                                   -----------      -----------
                  BUILDING AND CONSTRUCTION -- 6.7%
   20,000         Bouygues SA ..............           550,895        1,028,357
   60,750         CRH plc ..................           896,276        1,975,193
   24,000         Technip SA ...............           652,173        1,329,189
                                                   -----------      -----------
                                                     2,099,344        4,332,739
                                                   -----------      -----------
                  BUSINESS SERVICES -- 3.8%
   39,000         Amano Corp. ..............           678,104          579,343
   21,000         Canon Inc. ...............           815,875        1,029,448
   19,000         Secom Co. Ltd. ...........           813,796          898,200
                                                   -----------      -----------
                                                     2,307,775        2,506,991
                                                   -----------      -----------
                  COMPUTER SOFTWARE AND SERVICES -- 1.3%
      600         NIWS Co. HQ Ltd. .........           734,719          512,758
   17,000         Square Enix Co. Ltd. .....           457,695          353,547
                                                   -----------      -----------
                                                     1,192,414          866,305
                                                   -----------      -----------
                  CONSUMER PRODUCTS -- 11.2%
   23,000         Altadis SA ...............           343,114        1,087,295
   32,000         Assa Abloy AB, Cl. B .....           607,983          538,021
   17,000         Christian Dior SA ........           855,329        1,666,667
   53,000         Compagnie Financiere
                    Richemont AG, Cl. A ....           992,176        2,427,712
   45,000         Gallaher Group plc .......           496,236          703,164
    5,000         Swatch Group AG ..........           575,853          844,546
                                                   -----------      -----------
                                                     3,870,691        7,267,405
                                                   -----------      -----------
                  ELECTRONICS -- 1.5%
    3,800         Keyence Corp. ............           719,306          970,255
                                                   -----------      -----------
                  ENERGY AND UTILITIES -- 9.7%
   56,000         Eni SpA ..................         1,044,961        1,649,566
   18,000         Imperial Oil Ltd. ........           673,425          657,565
   13,000         Petroleo Brasileiro SA, ADR          544,676        1,161,030
   42,000         Saipem SpA ...............           774,010          955,681
    8,000         Sasol Ltd. ...............           307,977          306,834
   23,776         Total SA .................           886,190        1,564,630
                                                   -----------      -----------
                                                     4,231,239        6,295,306
                                                   -----------      -----------
                  ENTERTAINMENT -- 5.5%
   13,500         Oriental Land Co. Ltd. ...           805,171          759,699
  146,000         Publishing & Broadcasting Ltd.     1,026,002        1,975,655
   24,000         Vivendi SA ...............           599,739          841,104
                                                   -----------      -----------
                                                     2,430,912        3,576,458
                                                   -----------      -----------

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

                  FINANCIAL SERVICES: BANKS -- 9.3%
   60,006         Bank of Ireland ..........       $   387,193      $ 1,070,672
   14,000         Credit Suisse Group ......           636,815          783,281
   75,000         Shizuoka Bank Ltd. .......           745,718          810,031
   35,000         Standard Chartered plc ...           684,063          854,337
   13,000         UBS AG ...................           731,879        1,424,891
   65,000         UniCredito Italiano SpA ..           468,151          508,806
   35,000         Westpac Banking Corp. ....           550,221          605,480
                                                   -----------      -----------
                                                     4,204,040        6,057,498
                                                   -----------      -----------
                  FINANCIAL SERVICES: BROKERAGE -- 2.8%
   35,000         Mediobanca SpA ...........           721,762          685,379
   90,000         Nikko Cordial Corp. ......         1,233,959        1,151,346
                                                   -----------      -----------
                                                     1,955,721        1,836,725
                                                   -----------      -----------
                  FINANCIAL SERVICES: INSURANCE -- 3.8%
    4,500         Allianz AG ...............           558,064          710,947
   55,000         Aviva plc ................           577,162          778,566
   40,000         Irish Life & Permanent plc,
                     London ................           314,039          957,753
                                                   -----------      -----------
                                                     1,449,265        2,447,266
                                                   -----------      -----------
                  FOOD AND BEVERAGE -- 6.5%
   50,000         Ajinomoto Co. Inc. .......           596,119          553,565
   29,000         ARIAKE JAPAN Co. Ltd. ....           693,462          641,122
   65,000         Cadbury Schweppes plc ....           669,773          626,838
   20,000         Coca-Cola Hellenic
                     Bottling Co. SA .......           270,013          596,037
   55,000         Diageo plc ...............           487,990          925,024
    4,500         Pernod-Ricard SA .........           325,884          892,138
                                                   -----------      -----------
                                                     3,043,241        4,234,724
                                                   -----------      -----------
                  HEALTH CARE -- 16.4%
    1,875         AstraZeneca plc, London ..            85,577          113,172
   14,126         AstraZeneca plc, Stockholm           532,974          852,850
   42,140         GlaxoSmithKline plc ......         1,205,664        1,177,461
   27,000         Hisamitsu Pharmaceutical
                    Co. Inc. ...............           669,259          828,120
   25,000         Novartis AG ..............           953,728        1,353,728
    9,000         Roche Holding AG .........           926,761        1,487,792
   11,372         Sanofi-Aventis ...........           684,873        1,109,811
   60,000         Smith & Nephew plc .......           542,091          462,119
    3,000         Straumann Holding AG .....           617,094          764,999
    5,500         Synthes Inc. .............           372,080          663,572
   16,000         Takeda Pharmaceutical Co. Ltd.       846,985          995,456
   12,000         William Demant Holding A/S+          541,308          897,142
                                                   -----------      -----------
                                                     7,978,394       10,706,222
                                                   -----------      -----------

                 See accompanying notes to financial statements.

                                       4


GAMCO INTERNATIONAL GROWTH FUND, INC.
SCHEDULE OF INVESTMENTS (CONTINUED) -- JUNE 30, 2006 (UNAUDITED)
- --------------------------------------------------------------------------------

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

                  COMMON STOCKS (CONTINUED)
                  HOTELS AND GAMING -- 2.8%
   34,000         Greek Organization of Football
                    Prognostics SA .........       $   377,389       $1,230,702
   77,647         Ladbrokes plc ............           858,406          585,114
                                                   -----------      -----------
                                                     1,235,795        1,815,816
                                                   -----------      -----------
                  METALS AND MINING -- 6.2%
   29,000         Anglo American plc .......         1,106,323        1,189,452
   85,500         Harmony Gold
                    Mining Co. Ltd.+ .......           534,222        1,360,607
   16,000         Harmony Gold
                    Mining Co. Ltd., ADR+ ..            86,109          260,640
   32,000         Xstrata plc ..............           651,929        1,213,085
                                                   -----------      -----------
                                                     2,378,583        4,023,784
                                                   -----------      -----------
                  REAL ESTATE -- 0.8%
   50,000         Cheung Kong (Holdings) Ltd.          585,811          541,764
    1,562         Prosperity REIT+ .........               439              336
                                                   -----------      -----------
                                                       586,250          542,100
                                                   -----------      -----------
                  RETAIL -- 5.0%
   35,000         Matsumotokiyoshi Co. Ltd.            959,917          889,986
   20,000         Next plc .................           526,629          603,584
   30,400         Seven & I Holdings Co. Ltd.          902,824        1,001,468
   50,000         Woolworths Ltd. ..........           686,495          748,675
                                                   -----------      -----------
                                                     3,075,865        3,243,713
                                                   -----------      -----------
                  SPECIALTY CHEMICALS -- 2.8%
      594         Arkema+ ..................            46,642           23,196
   18,500         Bayer AG .................           778,301          850,428
  175,000         Tokai Carbon Co. Ltd. ....           739,841          980,208
                                                   -----------      -----------
                                                     1,564,784        1,853,832
                                                   -----------      -----------
                  TOTAL COMMON STOCKS ......        45,692,285       64,954,422
                                                   -----------      -----------

 PRINCIPAL                                                            MARKET
  AMOUNT                                              COST             VALUE
  ------                                              ----             ------
                  U.S. GOVERNMENT OBLIGATIONS -- 0.4%
$298,000          U.S. Treasury Bills,
                    4.744% to 4.923%++,
                    07/27/06 to 09/07/06 ...       $   296,315      $   296,324
                                                   -----------      -----------
                  TOTAL
                    INVESTMENTS -- 100.2% ..       $45,988,600       65,250,746
                                                   ===========
                  OTHER ASSETS AND LIABILITIES (NET) -- (0.2)% ....    (152,951)
                                                                    -----------
                  NET ASSETS -- 100.0% ............................ $65,097,795
                                                                    ===========
- ----------------
 +    Non-income producing security.
 ++   Represents annualized yield at date of purchase.
 ADR  American Depository Receipt


                                         % OF
                                        MARKET         MARKET
GEOGRAPHIC DIVERSIFICATION               VALUE         VALUE
- --------------------------              ------         ------
Europe ................................   67.0%     $43,717,711
Japan .................................   19.9       12,954,552
Asia/Pacific ..........................    5.9        3,871,910
South Africa ..........................    2.9        1,928,081
North America .........................    2.5        1,617,462
Latin America .........................    1.8        1,161,030
                                         -----      -----------
                                         100.0%     $65,250,746
                                         =====      ===========


                 See accompanying notes to financial statements.

                                       5



                      GAMCO INTERNATIONAL GROWTH FUND, INC.


STATEMENT OF ASSETS AND LIABILITIES
JUNE 30, 2006 (UNAUDITED)
- --------------------------------------------------------------------------------
ASSETS:
  Investments, at value (cost $45,988,600) ................   $ 65,250,746
  Foreign currency, at value (cost $7,545) ................          7,674
  Cash ....................................................            583
  Receivable for investments sold .........................        550,937
  Dividends receivable ....................................        132,060
  Receivable for Fund shares sold .........................         14,166
  Other assets ............................................          1,904
                                                              ------------
  TOTAL ASSETS ............................................     65,958,070
                                                              ------------
LIABILITIES:
  Payable for investments purchased .......................        535,348
  Payable for Fund shares redeemed ........................        176,049
  Payable for investment advisory fees ....................         55,436
  Payable for distribution fees ...........................         13,900
  Other accrued expenses ..................................         79,542
                                                              ------------
  TOTAL LIABILITIES .......................................        860,275
                                                              ------------
  NET ASSETS applicable to 2,927,560
    shares outstanding ....................................   $ 65,097,795
                                                              ============
NET ASSETS CONSIST OF:
  Capital stock, each class at $0.001 par value ...........   $      2,928
  Additional paid-in capital ..............................     54,899,303
  Accumulated net investment income .......................      1,193,140
  Accumulated net realized loss on investments
    and foreign currency transactions .....................    (10,261,883)
  Net unrealized appreciation on investments ..............     19,262,146
  Net unrealized appreciation on foreign
    currency translations .................................          2,161
                                                              ------------
  NET ASSETS ..............................................   $ 65,097,795
                                                              ============
SHARES OF CAPITAL STOCK:
  CLASS AAA:
  Net Asset Value, offering and redemption price
    per share ($64,749,010 / 2,911,923 shares
    outstanding; 375,000,000 shares authorized) ...........         $22.24
                                                                    ======
  CLASS A:
  Net Asset Value and redemption price per share
    ($284,104 / 12,647 shares outstanding;
    250,000,000 shares authorized) ........................         $22.46
                                                                    ======
  Maximum offering price per share (NAV / .9425,
    based on maximum sales charge of 5.75%
    of the offering price) ................................         $23.83
                                                                    ======
  CLASS B:
  Net Asset Value and offering price per share
    ($52,776 / 2,435 shares outstanding;
    125,000,000 shares authorized) ........................         $21.67(a)
                                                                    ======
  CLASS C:
  Net Asset Value and offering price per share
    ($11,905 / 554.5 shares outstanding;
    125,000,000 shares authorized) ........................         $21.47(a)
                                                                    ======
- -------------------
(a) Redemption price varies based on the length of time held.



STATEMENT OF OPERATIONS
FOR THE SIX MONTHS ENDED JUNE 30, 2006 (UNAUDITED)
- --------------------------------------------------------------------------------
INVESTMENT INCOME:
  Dividends (net of foreign taxes of $43,514) ..............    $1,754,567
  Interest .................................................        15,608
                                                                ----------
  TOTAL INVESTMENT INCOME ..................................     1,770,175
                                                                ----------
EXPENSES:
  Investment advisory fees .................................       326,235
  Distribution fees - Class AAA ............................        81,072
  Distribution fees - Class A ..............................           402
  Distribution fees - Class B ..............................           262
  Distribution fees - Class C ..............................            75
  Legal and audit fees .....................................        30,373
  Shareholder communications expenses ......................        29,689
  Shareholder services fees ................................        25,101
  Custodian fees ...........................................        21,074
  Registration expenses ....................................        17,253
  Directors' fees ..........................................         5,088
  Interest expense .........................................           439
  Miscellaneous expenses ...................................        42,650
                                                                ----------
  TOTAL EXPENSES ...........................................       579,713
  Less: Custodian fee credits ..............................          (119)
                                                                ----------
  TOTAL NET EXPENSES .......................................       579,594
                                                                ----------
  NET INVESTMENT INCOME ....................................     1,190,581
                                                                ----------
NET REALIZED AND UNREALIZED GAIN (LOSS) ON
  INVESTMENTS AND FOREIGN CURRENCY:
  Net realized gain on investments .........................       947,442
  Net realized gain on foreign
    currency transactions ..................................         6,832
                                                                ----------
  Net realized gain on investments and
    foreign currency transactions ..........................       954,274
  Net change in unrealized appreciation/
    depreciation on investments and foreign
    currency translations ..................................     2,447,268
                                                                ----------
  NET REALIZED AND UNREALIZED GAIN (LOSS) ON
    INVESTMENTS AND FOREIGN CURRENCY .......................     3,401,542
                                                                ----------
  NET INCREASE IN NET ASSETS RESULTING
    FROM OPERATIONS ........................................    $4,592,123
                                                                ==========


                See accompanying notes to financial statements.

                                       6



                      GAMCO INTERNATIONAL GROWTH FUND, INC.



STATEMENT OF CHANGES IN NET ASSETS
- ---------------------------------------------------------------------------------------------------------------------
                                                                                SIX MONTHS ENDED
                                                                                  JUNE 30, 2006        YEAR ENDED
                                                                                   (UNAUDITED)      DECEMBER 31, 2005
                                                                                ----------------    -----------------
                                                                                                  
OPERATIONS:
  Net investment income ....................................................      $ 1,190,581           $ 255,903
  Net realized gain on investments and foreign currency transactions .......          954,274           1,898,902
  Net change in unrealized appreciation/depreciation on investments
    and foreign currency translations ......................................        2,447,268           3,280,428
                                                                                  -----------         -----------
  NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS .....................        4,592,123           5,435,233
                                                                                  -----------         -----------
DISTRIBUTIONS TO SHAREHOLDERS:
  Net investment income
    Class AAA ..............................................................               --            (247,787)
    Class A ................................................................               --                (901)
    Class C ................................................................               --                 (34)
                                                                                  -----------         -----------
  TOTAL DISTRIBUTIONS TO SHAREHOLDERS ......................................               --            (248,722)
                                                                                  -----------         -----------
CAPITAL SHARE TRANSACTIONS:
    Class AAA ..............................................................          625,542          (1,027,448)
    Class A ................................................................           14,060              20,347
    Class B ................................................................              (10)            (38,343)
    Class C ................................................................           (4,843)              8,608
                                                                                  -----------         -----------
  NET INCREASE (DECREASE) IN NET ASSETS FROM CAPITAL SHARE TRANSACTIONS ....          634,749          (1,036,836)
                                                                                  -----------         -----------
  REDEMPTION FEES ..........................................................               55               2,588
                                                                                  -----------         -----------
  NET INCREASE IN NET ASSETS ...............................................        5,226,927           4,152,263
NET ASSETS:
  Beginning of period ......................................................       59,870,868          55,718,605
                                                                                  -----------         -----------
  End of period (including undistributed net investment income
    of $1,193,140 and $2,559, respectively) ................................      $65,097,795         $59,870,868
                                                                                  ===========         ===========




                 See accompanying notes to financial statements.

                                       7


GAMCO INTERNATIONAL GROWTH FUND, INC.
NOTES TO FINANCIAL STATEMENTS (UNAUDITED)
- --------------------------------------------------------------------------------

1. ORGANIZATION.  GAMCO International  Growth Fund, Inc. (the "Fund"),  formerly
Gabelli  International  Growth Fund,  Inc.,  was  organized on May 25, 1994 as a
Maryland  corporation.  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 long-term capital appreciation. The
Fund commenced investment operations on June 30,1995.

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  Directors  (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").

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.


                                       8


GAMCO INTERNATIONAL GROWTH FUND, INC.
NOTES TO FINANCIAL STATEMENTS (CONTINUED) (UNAUDITED)
- --------------------------------------------------------------------------------

REPURCHASE  AGREEMENTS.  The Fund may  enter  into  repurchase  agreements  with
primary  government  securities dealers recognized by the Federal Reserve Board,
with  member  banks of the  Federal  Reserve  System,  or with other  brokers or
dealers that meet credit  guidelines  established by the Adviser and reviewed by
the Board.  Under the terms of a typical  repurchase  agreement,  the Fund takes
possession  of an  underlying  debt  obligation  subject to an obligation of the
seller to repurchase,  and the Fund to resell,  the obligation at an agreed-upon
price and time, thereby  determining the yield during the Fund's holding period.
The Fund will always receive and maintain  securities as collateral whose market
value, including accrued interest,  will be at least equal to 102% of the dollar
amount  invested by the Fund in each  agreement.  The Fund will make payment for
such  securities  only upon  physical  delivery  or upon  evidence of book entry
transfer of the collateral to the account of the  custodian.  To the extent that
any repurchase transaction exceeds one business day, the value of the collateral
is marked-to-market on a daily basis to maintain the adequacy of the collateral.
If the seller defaults and the value of the collateral declines or if bankruptcy
proceedings   are  commenced  with  respect  to  the  seller  of  the  security,
realization of the collateral by the Fund may be delayed or limited. At June 30,
2006, there were no open repurchase agreements.

FORWARD  FOREIGN  EXCHANGE  CONTRACTS.  The Fund may engage in  forward  foreign
exchange contracts for hedging a specific transaction with respect to either the
currency in which the  transaction is denominated or another  currency as deemed
appropriate by the Adviser. Forward foreign exchange contracts are valued at the
forward  rate and are  marked-to-market  daily.  The  change in market  value is
included in  unrealized  appreciation/depreciation  on  investments  and foreign
currency translations.  When the contract is closed, the Fund records a realized
gain or loss equal to the  difference  between the value of the  contract at the
time it was opened and the value at the time it was closed.

The use of forward foreign exchange contracts does not eliminate fluctuations in
the underlying prices of the Fund's portfolio securities,  but it does establish
a rate of exchange that can be achieved in the future.  Although forward foreign
exchange  contracts  limit the risk of loss due to a decline in the value of the
hedged currency, they also limit any potential gain that might result should the
value of the currency increase. In addition,  the Fund could be exposed to risks
if the  counterparties  to the  contracts  are unable to meet the terms of their
contracts.  At June  30,  2006,  there  were no open  forward  foreign  exchange
contracts.

FOREIGN CURRENCY TRANSLATIONS.  The books and records of the Fund are maintained
in  U.S.  dollars.  Foreign  currencies,   investments,  and  other  assets  and
liabilities  are translated  into U.S.  dollars at the current  exchange  rates.
Purchases  and  sales  of  investment  securities,   income,  and  expenses  are
translated  at the exchange  rate  prevailing  on the  respective  dates of such
transactions.  Unrealized  gains and losses that result from  changes in foreign
exchange rates and/or changes in market prices of securities  have been included
in unrealized  appreciation/depreciation  on  investments  and foreign  currency
translations.  Net realized  foreign  currency  gains and losses  resulting from
changes in exchange  rates include  foreign  currency  gains and losses  between
trade date and settlement date on investment  securities  transactions,  foreign
currency  transactions,  and the difference  between the amounts of interest and
dividends  recorded on the books of the Fund and the amounts actually  received.
The  portion of foreign  currency  gains and losses  related to  fluctuation  in
exchange rates between the initial trade date and subsequent  sale trade date is
included in realized gain/(loss) on investments.

                                       9

GAMCO INTERNATIONAL GROWTH FUND, INC.
NOTES TO FINANCIAL STATEMENTS (CONTINUED) (UNAUDITED)
- --------------------------------------------------------------------------------

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.

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 net asset value ("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. 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".

DISTRIBUTIONS TO SHAREHOLDERS. Distributions to shareholders 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  and  foreign
currency  transactions  held by the  Fund,  timing  differences,  and  differing
characterizations  of  distributions  made by the Fund.  Distributions  from net
investment  income include net realized gains on foreign currency  transactions.
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 NAV of the Fund.  For the  fiscal  year
ended December 31, 2005, reclassifications were made to decrease accumulated net
investment  income by $5,102 and to decrease  accumulated  net realized  loss on
investments and foreign currency transactions by $5,102.

                                       10

GAMCO INTERNATIONAL GROWTH FUND, INC.
NOTES TO FINANCIAL STATEMENTS (CONTINUED) (UNAUDITED)
- --------------------------------------------------------------------------------

The tax character of  distributions  paid during the fiscal year ended  December
31, 2005 was as follows:

    DISTRIBUTIONS PAID FROM:
    Ordinary income
      (inclusive of short-term capital gains) ..................   $248,722
                                                                   --------
    Total distributions paid ...................................   $248,722
                                                                   ========

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.

As of December 31, 2005, the components of  accumulated  earnings/(losses)  on a
tax basis were as follows:

    Undistributed ordinary income .............................$      2,559
    Capital loss carryforward ................................. (10,651,599)
    Net unrealized appreciation on investments and
      foreign receivables and payables ........................  16,252,481
                                                               ------------
    Total accumulated gain ....................................$  5,603,441
                                                               ============

At December 31, 2005,  the Fund had net capital loss  carryforwards  for Federal
income  tax  purposes  of  $10,651,599,  which are  available  to reduce  future
required  distributions of net capital gains to shareholders.  $2,699,577 of the
loss  carryforward is available  through 2009;  $5,226,116 is available  through
2010; and $2,725,906 is available  through 2011. For the year ended December 31,
2005, the Fund utilized net capital loss carryforwards of $1,904,165.

The following  summarizes the tax cost of investments and the related unrealized
appreciation/depreciation at June 30, 2006:


                                                   GROSS              GROSS         NET UNREALIZED
                                                UNREALIZED         UNREALIZED        APPRECIATION/
                                   COST        APPRECIATION       DEPRECIATION      (DEPRECIATION)
                                   ----        ------------       ------------      --------------
                                                                         
   Investments ............... $46,553,135      $20,595,273       $(1,897,662)       $18,697,611


3.  INVESTMENT  ADVISORY  AGREEMENT.  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 Directors of the Fund who are affiliated persons of the Adviser.

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.

                                       11

GAMCO INTERNATIONAL GROWTH FUND, INC.
NOTES TO FINANCIAL STATEMENTS (CONTINUED) (UNAUDITED)
- --------------------------------------------------------------------------------

5. PORTFOLIO SECURITIES. Purchases and proceeds from the sales of securities for
the six months ended June 30, 2006, other than short-term securities, aggregated
$8,179,720 and $6,117,082, respectively.

6.  TRANSACTIONS  WITH  AFFILIATES.  During the six months  ended June 30, 2006,
Gabelli  &  Company  informed  the Fund that it  received  $110  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 six months
ended  June 30,  2006,  the Fund  paid or  accrued  $22,500  to the  Adviser  in
connection  with the cost of  computing  the Fund's  NAV,  which is  included in
miscellaneous expenses in the Statement of Operations.

7. LINE OF CREDIT.  The Fund has access to an unsecured  line of credit of up to
$25,000,000  from the  custodian for temporary  borrowing  purposes.  Borrowings
under this  arrangement  bear  interest at 0.75% above the Federal Funds rate on
outstanding  balances.  At June 30, 2006,  there were no borrowings  outstanding
from the line of credit.

The  average  daily  amount of  borrowings  outstanding  from the line of credit
within the six months  ended June 30, 2006 was $6,558,  with a weighted  average
interest rate of 5.54%.  The maximum amount  borrowed at any time during the six
months ended June 30, 2006 was $438,000.

8. CAPITAL STOCK TRANSACTIONS.  The Fund currently offers four classes of shares
- - Class AAA Shares,  Class A Shares,  Class B Shares, and Class C Shares.  Class
AAA Shares are offered only to investors  who acquire them directly from Gabelli
& Company, or through selected  broker/dealers,  or the transfer agent without a
sales charge.  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.  The Board has approved
Class I Shares which have not been offered publicly.

Effective June 15, 2005, the Fund imposed a redemption fee of 2.00% on Class AAA
Shares,  Class A Shares, Class B Shares, and Class C Shares that are redeemed or
exchanged  on or before the seventh day after the date of a purchase.  (Prior to
June 15, 2005, the Fund imposed a redemption fee on shares that were redeemed or
exchanged  on or before  the  sixtieth  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 six months  ended June 30,  2006 and fiscal year ended  December
31, 2005 amounted to $55 and $2,588, respectively.

The redemption fee does not apply to shares purchased  through programs that the
Adviser  determined to have  appropriate  short-term  trading policies in place.
Additionally,  certain recordkeepers for qualified and non-qualified  retirement
plans that could not collect the redemption fee at the participant  level due to
systems limitations have received an extension to implement such systems.

                                       12

GAMCO INTERNATIONAL GROWTH FUND, INC.
NOTES TO FINANCIAL STATEMENTS (CONTINUED) (UNAUDITED)
- --------------------------------------------------------------------------------

Transactions in shares of capital stock were as follows:


                                                               SIX MONTHS ENDED
                                                                 JUNE 30, 2006                YEAR ENDED
                                                                  (UNAUDITED)              DECEMBER 31, 2005
                                                             ---------------------      ----------------------
                                                              SHARES      AMOUNT         SHARES      AMOUNT
                                                             --------  -----------      --------  ------------
                                                                   CLASS AAA                  CLASS AAA
                                                             ---------------------      ----------------------
                                                                                      
Shares sold ..............................................    431,111  $ 9,516,795       814,424  $ 15,624,205
Shares issued upon reinvestment of dividends .............         --           --        11,217       230,849
Shares redeemed ..........................................   (405,826)  (8,891,253)     (895,699)  (16,882,502)
                                                             --------  -----------      --------  ------------
  Net increase (decrease) ................................     25,285  $   625,542       (70,058) $ (1,027,448)
                                                             ========  ===========      ========  ============
                                                                    CLASS A                    CLASS A
                                                             ---------------------      ----------------------
Shares sold ..............................................      3,251  $    71,727        11,486  $    211,509
Shares issued upon reinvestment of dividends .............         --           --            23           484
Shares redeemed ..........................................     (2,709)     (57,667)      (10,078)     (191,646)
                                                             --------  -----------      --------  ------------
  Net increase ...........................................        542  $    14,060         1,431  $     20,347
                                                             ========  ===========      ========  ============
                                                                    CLASS B                    CLASS B
                                                             ---------------------      ----------------------
Shares sold ..............................................         --           --           734  $     13,990
Shares issued upon reinvestment of dividends .............         --           --            --            --
Shares redeemed ..........................................         (1) $       (10)       (2,868)      (52,333)
                                                             --------  -----------      --------  ------------
  Net decrease ...........................................         (1) $       (10)       (2,134) $    (38,343)
                                                             ========  ===========      ========  ============
                                                                    CLASS C                    CLASS C
                                                             ---------------------      ----------------------
Shares sold ..............................................         24  $       491           751  $     13,611
Shares issued upon reinvestment of dividends .............         --           --             1            23
Shares redeemed ..........................................       (228)      (5,334)         (274)       (5,026)
                                                             --------  -----------      --------  ------------
  Net increase (decrease) ................................       (204) $    (4,843)          478  $      8,608
                                                             ========  ===========      ========  ============


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 have received  subpoenas from
the Attorney General of the State of New York and the SEC requesting information
on mutual fund trading practices involving certain funds managed by the Adviser.
GAMCO Investors,  Inc. ("GAMCO"), the Adviser's parent company, is responding to
these  requests  for  documents  and  testimony.   In  June  2006,  GAMCO  began
discussions with the SEC regarding a possible resolution of their inquiry. Since
these discussions are ongoing, it cannot be determined at this time whether they
will ultimately  result in a settlement of this matter. 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
seven 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


GAMCO INTERNATIONAL GROWTH FUND, INC.
FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------

Selected data for a share of capital stock outstanding throughout each period:


                                  INCOME
                        FROM INVESTMENT OPERATIONS                  DISTRIBUTIONS
                        --------------------------  ------------------------------------------------
                                         Net
             Net Asset       Net     Realized and      Total                  Net
  Period       Value,    Investment   Unrealized       from        Net      Realized
   Ended     Beginning     Income/  Gain/(Loss) on  Investment  Investment   Gain on        Total
December 31   of Period   (Loss)(a)  Investments    Operations    Income   Investments  Distributions
- -----------  ----------  ----------  ------------   ----------  ---------- -----------  -------------
                                                                     
CLASS AAA
  2006(b)     $20.63      $ 0.40     $ 1.21         $ 1.61          --         --           --
  2005         18.75        0.09       1.88           1.97      $(0.09)        --       $(0.09)
  2004         16.10        0.06       2.62           2.68       (0.05)        --        (0.05)
  2003         11.79        0.01       4.27           4.28       (0.01)        --        (0.01)
  2002         13.74        0.01      (1.95)         (1.94)      (0.01)        --        (0.01)
  2001         18.29        0.17      (4.51)         (4.34)      (0.18)    $(0.03)       (0.21)
CLASS A
  2006(b)     $20.84      $ 0.37     $ 1.25         $ 1.62          --         --           --
  2005         18.92        0.11       1.88           1.99      $(0.07)        --       $(0.07)
  2004         16.28        0.07       2.61           2.68       (0.06)        --        (0.06)
  2003         11.91       (0.04)      4.39           4.35       (0.03)        --        (0.03)
  2002         13.74       (0.05)     (1.74)         (1.79)      (0.04)        --        (0.04)
  2001         14.88       (0.23)     (0.69)         (0.92)      (0.19)    $(0.03)       (0.22)
CLASS B
  2006(b)     $20.18      $ 0.31     $ 1.18         $ 1.49          --         --           --
  2005         18.40       (0.06)      1.84           1.78          --         --           --
  2004         15.87       (0.04)      2.55           2.51          --         --           --
  2003         11.70       (0.09)      4.22           4.13          --         --           --
  2002         13.73       (0.09)     (1.94)         (2.03)         --         --           --
  2001         17.68        0.12      (3.95)         (3.83)     $(0.09)    $(0.03)      $(0.12)
CLASS C
  2006(b)     $20.00      $ 0.24     $ 1.23         $ 1.47          --         --           --
  2005         18.24       (0.18)      1.98           1.80      $(0.04)        --       $(0.04)
  2004         15.73       (0.07)      2.56           2.49          --         --           --
  2003         11.70       (0.11)      4.12           4.01          --         --           --
  2002         13.74       (0.10)     (1.94)         (2.04)         --         --           --
  2001         18.28        0.07      (4.51)         (4.44)      (0.07)    $(0.03)       (0.10)





                                             RATIOS TO AVERAGE NET ASSETS/SUPPLEMENTAL DATA
                                  ----------------------------------------------------------------------
                                                                                 Operating
                       Net Asset            Net Assets      Net                   Expense
  Period                 Value,               End of     Investment              Ratio (Net  Portfolio
   Ended   Redemption   End of     Total     Period       Income/    Operating  of Interest   Turnover
December 31  Fees(a)    Period    Return+   (in 000's)     (Loss)     Expenses    Expense)      Rate
- ------------ --------  --------   -------   ----------   ----------   --------  -----------   ---------
                                                                          
CLASS AAA
  2006(b)   $0.00(c)    $22.24      7.8%     $64,749       3.65%(d)    1.78%(d)    1.77%(d)       9%
  2005       0.00(c)     20.63     10.5       59,554       0.48        1.89        1.88          19
  2004       0.02        18.75     16.8       55,427       0.35        1.84        1.84          16
  2003       0.04        16.10     36.7       42,009       0.07        1.97        1.94          19
  2002         --        11.79    (14.1)      35,536       0.05        1.90        1.89          25
  2001         --        13.74    (23.7)      47,172       1.14        1.86        1.80          31
CLASS A
  2006(b)   $0.00(c)    $22.46      7.8%     $   284       3.32%(d)    1.78%(d)    1.77%(d)       9%
  2005       0.00(c)     20.84     10.5          253       0.56        1.89        1.88          19
  2004       0.02        18.92     16.8          202       0.40        1.84        1.84          16
  2003       0.05        16.28     36.7           90      (0.29)       1.93        1.90          19
  2002         --        11.91    (13.1)           1      (0.36)       1.43        1.43          25
  2001         --        13.74     (6.2)           1      (3.85)(d)    1.86(d)     1.86(d)       31
CLASS B
  2006(b)   $0.00(c)    $21.67      7.4%     $    53       2.91%(d)    2.53%(d)    2.52%(d)       9%
  2005       0.00(c)     20.18      9.7           49      (0.31)       2.63        2.62          19
  2004       0.02        18.40     15.9           84      (0.23)       2.59        2.59          16
  2003       0.04        15.87     35.6           22      (0.73)       2.71        2.69          19
  2002         --        11.70    (14.8)          14      (0.69)       2.65        2.64          25
  2001         --        13.73    (21.7)          18       0.82(d)     2.60(d)     2.56(d)       31
CLASS C
  2006(b)   $0.00(c)    $21.47      7.4%     $    12       2.25%(d)    2.53%(d)    2.52%(d)       9%
  2005       0.00(c)     20.00      9.9           15      (0.95)       2.62        2.61          19
  2004       0.02        18.24     16.0            5      (0.40)       2.59        2.59          16
  2003       0.02        15.73     34.4            5      (0.84)       2.82        2.82          19
  2002         --        11.70    (14.9)           3      (0.78)       2.61        2.61          25
  2001         --        13.74    (24.3)           4       0.43        2.64        2.59          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.  Total  return  for the  period of less than one year is not
    annualized.
(a) Per share amounts have been calculated using the average shares  outstanding
    method.
(b) For the six months ended June 30, 2006, unaudited.
(c) Amount represents less than $0.005 per share.
(d) Annualized.


                 See accompanying notes to financial statements.


                                       14



                      GAMCO INTERNATIONAL GROWTH FUND, INC.

BOARD CONSIDERATION AND RE-APPROVAL OF INVESTMENT ADVISORY AGREEMENT (UNAUDITED)

Section  15(c) of the  Investment  Company  Act of 1940,  as amended  (the "1940
Act"),  contemplates  that the Board of  Directors  (the  "Board")  of the GAMCO
International  Growth  Fund,  Inc.  (the  "Fund"),  including  a majority of the
Directors  who have no direct or indirect  interest in the  investment  advisory
agreement and are not  "interested  persons" of the Fund, as defined in the 1940
Act (the  "independent  board  members"),  are  required to annually  review and
re-approve the terms of the Fund's existing  investment  advisory  agreement and
approve any newly proposed terms therein. In this regard, the Board reviewed and
re-approved, during the most recent six month period covered by this report, the
Investment Advisory Agreement (the "Advisory Agreement") with Gabelli Funds, LLC
(the "Adviser") for the Fund.

More specifically,  at a meeting held on February 15, 2006, the Board, including
the  independent   board  members,   considered  the  factors  and  reached  the
conclusions  described  below  relating to the  selection of the Adviser and the
re-approval of the Advisory Agreement.

1.  NATURE,  EXTENT,  AND QUALITY OF SERVICES.  The  independent  board  members
considered the nature,  quality,  and extent of  administrative  and shareholder
services performed by the Adviser,  including portfolio management,  supervision
of Fund  operations and compliance  and  regulatory  filings and  disclosures to
shareholders, general oversight of other service providers, coordination of Fund
marketing  initiatives,  review of Fund legal issues,  assisting the independent
board  members  in  their  capacity  as  directors,   and  other  services.  The
independent  board members  concluded  that the services are extensive in nature
and that the Adviser consistently delivered a high level of service.

2. INVESTMENT PERFORMANCE OF THE FUND AND ADVISER. The independent board members
considered  short-term and long-term  investment  performance  for the Fund over
various  periods of time as compared  to both  relevant  equity  indices and the
performance  of the Fund's Lipper Inc. peer group,  and  concluded  that,  while
performance  for the most  recent one and three year  periods was below the peer
group average,  the Adviser was delivering superior performance results over the
most recent five and ten year periods  consistent with the long-term  investment
strategies being pursued by the Fund.


3. COSTS OF SERVICES AND PROFITS REALIZED BY THE ADVISER.

(A) COSTS OF SERVICES TO FUND: FEES AND EXPENSES.  The independent board members
considered  the Fund's  advisory fee rate and expense ratio relative to industry
averages and median  levels for the Fund's peer group  category and the advisory
fees  charged by the  Adviser  and its  affiliates  to other  fund and  non-fund
clients.  The independent board members noted that the mix of services under the
Advisory  Agreement  are much more  extensive  than  those  under  the  advisory
agreements for non-fund clients.  While the independent board members recognized
that the  advisory fee paid by the Fund is generally at the high end of its peer
group, they concluded that the fee is acceptable based upon the  qualifications,
experience,  reputation, and performance of the Adviser and the moderate overall
expense ratio of the Fund.

(B)  PROFITABILITY  AND COSTS OF  SERVICES  TO ADVISER.  The  independent  board
members considered the Adviser's overall  profitability and costs, and pro-forma
estimates of the Adviser's  profitability and costs attributable to the Fund (i)
as part of the Gabelli fund complex and (ii) assuming the Fund  constituted  the
Adviser's only investment  company under its management.  The independent  board
members also considered  whether the amount of profit is a fair  entrepreneurial
profit  for  the  management  of the  Fund,  and  noted  that  the  Adviser  has
substantially  increased  its  resources  devoted to Fund matters in response to
recently-enacted



                                       15


regulatory  requirements  and new or enhanced Fund policies and procedures.  The
independent board members  concluded that the Adviser's  profitability was at an
acceptable  level,  particularly  in light of the high  quality of the  services
being provided to the Fund.

4. EXTENT OF ECONOMIES OF SCALE AS FUND GROWS.  The  independent  board  members
considered  whether  there  have been  economies  of scale  with  respect to the
management of the Fund and whether the Fund has appropriately benefited from any
economies of scale. The independent  board members noted that economies of scale
may develop for certain  funds as their  assets  increase  and their  fund-level
expenses  decline as a percentage of assets,  but that  fund-level  economies of
scale  may not  necessarily  result in  Adviser-level  economies  of scale.  The
Adviser had stated  during the main meeting  that the  expenses  incurred by the
Adviser  relating to  management  of the Fund have  increased  substantially  in
recent years as a percentage of advisory fees, rather than declining as might be
anticipated as the assets of the Fund increase.  The  independent  board members
agreed that it was possible that Adviser-level expenses incurred in managing the
Fund  eventually  may level off or decline as a  percentage  of  advisory  fees,
especially if the assets of the Fund continue to grow beyond certain thresholds.

5. WHETHER FEE LEVELS REFLECT  ECONOMIES OF SCALE. The independent board members
also  considered  whether the advisory fee rate is reasonable in relation to the
asset size of the Fund and any economies of scale that may exist,  and concluded
that it currently was reasonable.


6. OTHER RELEVANT CONSIDERATIONS.

(A) ADVISER PERSONNEL AND METHODS.  The independent board members considered the
size,   education,   and  experience  of  the  Adviser's  staff,  the  Adviser's
fundamental  research  capabilities,  and the Adviser's  approach to recruiting,
training,  and retaining  portfolio  managers and other  research and management
personnel,  and concluded that in each of these areas the Adviser was structured
in such a way to support the high level of services being provided to the Fund.

(B) OTHER BENEFITS TO THE ADVISER. The independent board members also considered
the character and amount of other  incidental  benefits  received by the Adviser
and its affiliates  from its association  with the Fund. The  independent  board
members  concluded that potential  "fall-out"  benefits that the Adviser and its
affiliates may receive, such as greater name recognition or increased ability to
obtain research services, appear to be reasonable, and may in some cases benefit
the Fund.

CONCLUSIONS.  In  considering  the Advisory  Agreement,  the  independent  board
members did not  identify any factor as  all-important  or  all-controlling  and
instead considered these factors collectively in light of the Fund's surrounding
circumstances.  Based on this  review,  it was the  judgment of the  independent
board members that  shareholders had received  acceptable  absolute and relative
performance at reasonable fees and, therefore,  re-approval of the Agreement was
in the  best  interests  of the  Fund  and  its  shareholders.  As a part of its
decision  making process,  the independent  board members noted that the Adviser
has managed the Fund since its  inception,  and the  independent  board  members
believe that a long-term  relationship with a capable,  conscientious adviser is
in the best interests of the Fund.  The  independent  board members  considered,
generally,  that  shareholders  invested  in the Fund  knowing  that the Adviser
managed the Fund and knowing its investment advisory fee schedule.  As such, the
independent board members considered, in particular, whether the Adviser managed
the Fund in accordance with its investment  objectives and policies as disclosed
to  shareholders.  The  independent  board members  concluded  that the Fund was
managed by the Adviser  consistent with its investment  objectives and policies.
Upon  conclusion of their review and discussion,  the independent  board members
unanimously  agreed to recommend the continuation of the Advisory  Agreement for
the Fund.

                                       16

- --------------------------------------------------------------------------------
     GABELLI 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
     GABELLI  CUSTOMER?
     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

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  less  than $1  billion)  believed  to have  rapid  revenue  and
earnings growth potential. The Fund's primary objective is capital appreciation.
(MULTICLASS)                            PORTFOLIO MANAGER: MARIO J. GABELLI, CFA

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)                                          TEAM MANAGED

GABELLI WOODLAND SMALL CAP VALUE FUND
Seeks to invest  primarily  in the common  stocks of smaller  companies  (market
capitalizations  less  than  $1.5  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 ___________________________________
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 market average 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

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

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)                                            TEAM MANAGED

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

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 world-wide 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. (CLASS AAA-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 ________________________________
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.



                      GAMCO INTERNATIONAL GROWTH FUND, INC.
                              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 available daily by calling
                           800-GABELLI after 6:00 P.M.



                               BOARD OF DIRECTORS

Mario J. Gabelli, CFA                            Werner J. Roeder, MD
CHAIRMAN AND CHIEF                               MEDICAL DIRECTOR
EXECUTIVE OFFICER                                LAWRENCE HOSPITAL
GAMCO INVESTORS, INC.

Anthony J. Colavita                              Anthonie C. van Ekris
ATTORNEY-AT-LAW                                  CHAIRMAN
ANTHONY J. COLAVITA, P.C.                        BALMAC INTERNATIONAL, INC.

Salvatore J. Zizza
CHAIRMAN
HALLMARK ELECTRICAL SUPPLIES CORP.



                         OFFICERS AND PORTFOLIO MANAGER

Caesar Bryan                                     Bruce N. Alpert
PORTFOLIO MANAGER                                PRESIDENT

James E. McKee                                   Agnes Mullady
SECRETARY                                        TREASURER

Peter D. Goldstein
CHIEF COMPLIANCE OFFICER


                                   DISTRIBUTOR
                             Gabelli & Company, Inc.



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



                                  LEGAL COUNSEL
                          Willkie Farr & Gallagher LLP


- --------------------------------------------------------------------------------
This report is submitted  for the general  information  of the  shareholders  of
GAMCO  International  Growth Fund, Inc. It is not authorized for distribution to
prospective investors unless preceded or accompanied by an effective prospectus.
- --------------------------------------------------------------------------------
GAB009Q206SR


                                                                           GAMCO





                                                      GAMCO
                                                      INTERNATIONAL
                                                      GROWTH
                                                      FUND,
                                                      INC.








                                                              SEMI-ANNUAL REPORT
                                                                   JUNE 30, 2006




ITEM 2. CODE OF ETHICS.

Not applicable.



ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT.

Not applicable.



ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES.

Not applicable.



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  Directors,  where those
changes were  implemented  after the  registrant  last  provided  disclosure  in
response to the  requirements  of Item  7(d)(2)(ii)(G)  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) Not applicable.

     (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)     GAMCO International Growth Fund, Inc.
            --------------------------------------------------------------------

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


Date     September 1, 2006
    ----------------------------------------------------------------------------


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     September 1, 2006
    ----------------------------------------------------------------------------


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


Date     September 1, 2006
    ----------------------------------------------------------------------------



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