UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                    FORM 10-Q



                QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

                For the quarterly period ended September 30, 2003

                            Commission file # 0-28388

                                 CNB CORPORATION
             (Exact name of registrant as specified in its charter)

         Michigan                                             38-2662386
(State or other jurisdiction of                            (I.R.S. Employer
incorporation or organization)                            Identification No.)

                    303 North Main Street, Cheboygan MI 49721
          (Address of principal executive offices, including Zip Code)

                                 (231) 627-7111
              (Registrant's telephone number, including area code)


Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
  the preceding 12 months (or for such shorter period that the registrant was
    required to file such reports), and (2) has been subject to such filing
                       requirements for the past 90 days.

Yes (X)                                                                No (  )


Indicate by check mark whether the registrant is an accelerated filer (as
defined in Rule 12b-2 of the Act).              Yes              No (X)



As of October 24, 2003 there were 1,185,192 shares of the issuer's common stock
outstanding.



                                       1







ITEM 1-FINANCIAL STATEMENTS (CONDENSED)

CONSOLIDATED BALANCE SHEETS (dollars in thousands, except per share data)




                                                                           September 30,      December 31,
                                                                               2003              2002
ASSETS                                                                      (Unaudited)
                                                                                        
Cash and due from banks                                                      $  6,819         $  7,026
Interest-bearing deposits with other
      financial institutions                                                    9,041            8,007
Federal funds sold                                                             13,350            7,700
                                                                             --------         --------
    Total cash and cash equivalents                                            29,210           22,733

Securities available for sale                                                  66,868           57,533
Securities held to maturity (market value of $5,312
     in 2003 and $5,755 in 2002)                                                5,199            5,615
Other securities                                                                6,302            6,252
Loans, net of allowance for loan losses of $1,615
     in 2003 and $1,669 in 2002                                               143,976          144,637
Premises and equipment, net                                                     3,835            3,442
Other assets                                                                    4,299            4,227
                                                                             --------         --------

        Total assets                                                         $259,689         $244,439
                                                                             ========         ========

LIABILITIES
Deposits
    Noninterest-bearing                                                      $ 38,610         $ 32,281
    Interest-bearing                                                          191,860          184,163
                                                                             --------         --------
           Total deposits                                                     230,470          216,444
Other liabilities                                                               3,283            3,258
                                                                             --------         --------
        Total liabilities                                                     233,753          219,702
                                                                             --------         --------


SHAREHOLDERS' EQUITY
Common stock - $2.50 par value; 2,000,000 shares
  authorized; 1,185,192 and 1,188,372 shares issued
  and outstanding in 2003 and 2002                                              2,963            2,971
Additional paid-in capital                                                     18,083           18,240
Retained earnings                                                               4,170            2,529
Accumulated other comprehensive income, net of tax                                720              997
                                                                             --------         --------
    Total shareholders' equity                                                 25,936           24,737
                                                                             --------         --------

        Total liabilities and shareholders' equity                           $259,689         $244,439
                                                                             ========         ========




See accompanying notes to consolidated financial statements.


                                       2







CONSOLIDATED STATEMENTS OF INCOME (dollars in thousands, except per share data)




                                                       Three months ended                Nine months ended
                                                          September 30,                    September 30,
                                                      2003           2002               2003          2002

                                                                           (Unaudited)
                                                                                       
INTEREST  INCOME
   Loans, including fees                           $  2,596       $  2,882           $  8,028      $  8,513
   Securities
      Taxable                                           400            554              1,313         1,798
      Tax exempt                                        211            216                657           688
   Interest on federal funds sold                        69             74                164           142
                                                   --------       --------           --------      --------
         Total interest income                        3,276          3,726             10,162        11,141

INTEREST EXPENSE ON DEPOSITS                            796          1,317              2,614         4,224
                                                   --------       --------           --------      --------

NET INTEREST INCOME                                   2,480          2,409              7,548         6,917

Provision for loan losses                                --             --                 --            --
                                                   --------       --------           --------      --------

NET INTEREST INCOME AFTER
 PROVISION FOR LOAN LOSSES                            2,480          2,409              7,548         6,917
                                                   --------       --------           --------      --------

NONINTEREST INCOME
   Service charges and fees                             250            282                714           764
   Net realized gains from sales of loans               232            217                709           408
   Loan servicing fees, net of amortization              (9)           (21)               (72)           19
   Other income                                         176             67                255           262
                                                   --------       --------           --------      --------
         Total noninterest income                       649            545              1,606         1,453

NONINTEREST EXPENSES
   Salaries and benefits                              1,004            924              2,951         2,672
   Occupancy                                            188            220                569           580
   Supplies                                              36             43                125           116
   Other expenses                                       412            327              1,263           902
                                                   --------       --------           --------      --------
         Total noninterest expenses                   1,640          1,514              4,908         4,270

INCOME BEFORE INCOME TAXES                            1,489          1,440              4,246         4,100

Income tax expense                                      391            419              1,181         1,141
                                                   --------       --------           --------      --------

NET INCOME                                         $  1,098       $  1,021           $  3,065      $  2,959
                                                   ========       ========           ========      ========

TOTAL COMPREHENSIVE INCOME                         $    836       $  1,257           $  2,788      $  3,205
                                                   ========       ========           ========      ========

Return on average assets (annualized)                  1.67%          1.66%              1.62%         1.66%
Return on average equity (annualized)                 17.02%         16.40%             16.00%        16.25%

Basic earnings per share                           $    .93       $    .86           $   2.58      $   2.48
Diluted earnings per share                         $    .92       $    .85           $   2.58      $   2.47



See accompanying notes to consolidated financial statements.


                                       3







CONSOLIDATED STATEMENTS OF CASH FLOWS (dollars in thousands)




                                                                          Nine months ended September 30,
                                                                                2003           2002
                                                                                    (Unaudited)
                                                                                      
CASH FLOWS FROM OPERATING ACTIVITIES
   Net Income                                                                $  3,065       $  2,959
   Adjustments to reconcile net income to net cash
      from operating activities
       Depreciation and amortization                                              729            481
       Loans originated for sale                                              (36,678)       (21,830)
       Proceeds from sales of loans originated for sale                        37,112         22,074
       Gain on sales of loans                                                    (709)          (408)
       Increase in other assets                                                    72           (559)
       Decrease in other liabilities                                               25            221
                                                                             --------       --------
           Total adjustments                                                      551            (21)
                                                                             --------       --------
              Net cash from operating activities                                3,616          2,938
CASH FLOWS FROM INVESTING ACTIVITIES
   Proceeds from maturities of securities available for sale                   24,227         15,246
   Purchase of securities available for sale                                  (34,415)       (17,189)
   Proceeds from maturities of securities held to maturity                      1,879          2,151
   Purchase of securities held to maturity                                     (1,463)          (699)
   Proceeds from maturities of other securities                                 1,285          2,700
   Purchase of other securities                                                (1,335)        (2,342)
   Net change in portfolio loans                                                  936         (9,306)
   Premises and equipment expenditures                                           (690)          (100)
                                                                             --------       --------
              Net cash from investing activities                               (9,576)        (9,539)
CASH FLOWS FROM FINANCING ACTIVITIES
   Net increase in deposits                                                    14,026         13,580
   Dividends paid                                                              (1,424)        (1,381)
   Proceeds from exercise of stock options                                          8           --
   Purchases of common stock                                                     (173)           (22)
                                                                             --------       --------
              Net cash from financing activities                               12,437         12,177


Net change in cash and cash equivalents                                         6,477          5,576
Cash and cash equivalents at beginning of year                                 22,733         16,847
                                                                             --------       --------
Cash and cash equivalents at end of period                                   $ 29,210       $ 22,423
                                                                             ========       ========
Cash paid during the period for:

   Interest                                                                  $  2,622       $  4,289
   Income taxes                                                              $  1,208       $  1,259




See accompanying notes to consolidated financial statements.



                                       4





NOTES TO FINANCIAL STATEMENTS

Note 1-Basis of Presentation

The consolidated financial statements include the accounts of CNB Corporation
("Company") and its wholly owned subsidiary, Citizens National Bank of Cheboygan
("Bank") and the Bank's wholly owned subsidiary CNB Mortgage Corporation. All
significant intercompany accounts and transactions are eliminated in
consolidation. The statements have been prepared by management without an audit
by independent certified public accountants. However, these statements reflect
all adjustments (consisting of normal recurring accruals) and disclosures which
are, in the opinion of management, necessary for a fair presentation of the
results for the interim periods presented and should be read in conjunction with
the notes to the consolidated financial statements included in the CNB
Corporation's Form 10-K for the year ended December 31, 2002.

Certain information and footnote disclosures normally included in financial
statements prepared in accordance with accounting principles generally accepted
in the United States of America have been condensed or omitted pursuant to the
rules and regulations of the Securities and Exchange Commission.

Because the results of operations are so closely related to and responsive to
changes in economic conditions, the results for any interim period are not
necessarily indicative of the results that can be expected for the entire year.

Stock Compensation: The following proforma information presents net income and
basic and diluted earnings per share had the fair value method been used to
measure compensation for stock options granted. The exercise price of options
granted is equivalent to the market price of the underlying stock at the stock
grant date; therefore no compensation expense has been recorded for stock
options granted.



                                           For the three months        For the nine months
                                                 ending                      ending
                                              September 30,               September 30,

                                            2003        2002           2003         2002
                                          -------     -------         -------      ------
                                                                       
Net income as reported                    $ 1,098     $ 1,021         $ 3,065      $2,959
Proforma net income                         1,098       1,021           3,065       2,959
Reported earnings per share
      Basic                               $   .93     $   .86         $  2.58      $ 2.48
      Diluted                                 .92         .85            2.58        2.47
Proforma earnings per share
      Basic                               $   .93     $   .86         $  2.58      $ 2.48
      Diluted                                 .92         .85            2.58        2.47


There were no stock options granted during the three or nine months ended
September 30, 2003 and 2002.


                                       5





In future years, as additional options are granted, the proforma effect on net
income and earnings per share may increase. Stock options are used to reward
certain officers and provide them with an additional equity interest. Options
are issued for 10 year periods and have varying vesting schedules. Information
about options available for grant and options granted follows:



                                                                          Weighted
                                                                          Average
                                      Available         Options           Exercise
                                      For Grant       Outstanding          Price
                                                              
Balance at January 1, 2003             17,713           29,498         $   44.83
   Options exercised                       --             (264)            26.66
   Options granted                         --               --                --
                                       ------           ------
Balance at September 30, 2003          17,713           29,234             44.99
                                       ======           ======




At September 30, 2003 options outstanding had a weighted average remaining life
of approximately 5.1 years. There were 29,234 options exercisable at September
30, 2003 with a weighted-average exercise price of $ 44.99.


Note 2-Earnings Per Share

Basic earnings per share are calculated solely on weighted-average common shares
outstanding. Diluted earnings per share will reflect the potential dilution of
stock options and other common stock equivalents. For the three and nine month
period ending September 30, 2003 the weighted average shares outstanding in
calculating basic earnings per share were 1,185,266 and 1,186,733 while the
weighted average number of shares for diluted earnings per share were 1,188,609
and 1,189,910. For the three and nine month period ending September 30, 2002 the
weighted average shares outstanding in calculating basic earnings per share were
1,193,062 and 1,193,156 while the weighted average number of shares for diluted
earnings per share were 1,197,558 and 1,198,380.



                                       6










ITEM 2-MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
       OF OPERATIONS

This discussion provides information about the consolidated financial condition
and results of operations of CNB Corporation ("Company") and its wholly owned
subsidiary, Citizens National Bank of Cheboygan ("Bank") and the Bank's wholly
owned subsidiary CNB Mortgage Corporation for the nine month period ending
September 30, 2003.

FINANCIAL CONDITION

The Company's balances of cash and cash equivalents increased $6.5 million or
28.5%. During the nine months ending September 30, 2003, $3.6 million of cash
was provided from operating activities. Investing activities utilized $9.6
million while financing activities provided $12.4 million in cash due to an
increase in deposits for the period ending September 30, 2003.

SECURITIES

The securities portfolio increased $8.9 million or 14.1%, since December 31,
2002. Securities available for sale increased to 92.8% of total investments, up
from 91.1% at year-end.

The fair values and related unrealized gains and losses for securities available
for sale were as follows, in thousands of dollars:



                                                          Gross           Gross
                                            Fair        Unrealized     Unrealized
                                            Value         Gains          Losses
                                           -------       -------        -------
                                                               
Available for Sale
   SEPTEMBER 30, 2003
     U.S. Government agency                $37,741       $   398        $   (30)
     State and municipal                    29,127           731             (8)
                                           -------       -------        -------
                                           $66,868       $ 1,129        $   (38)
                                           =======       =======        =======


    DECEMBER 31, 2002
     U.S. Government agency                $26,989       $   687        $    --
     State and municipal                    30,544           866            (41)
                                           -------       -------        -------
                                           $57,533       $ 1,553        $   (41)
                                           =======       =======        =======




                                       7







The carrying amount, unrecognized gains and losses, and fair value of securities
held to maturity were as follows, in thousand of dollars:




                                                     Gross            Gross
                                    Carrying      Unrecognized     Unrecognized    Fair
                                     Amount           Gain           Loss          Value
                                                                       
SEPTEMBER 30, 2003
    State and municipal              $5,199         $  114         $   (1)         $5,312


DECEMBER 31, 2002
    State and municipal              $5,615         $  140         $   --          $5,755




The carrying amount and fair value of securities by contractual maturity at
September 30, 2003 are shown below, in thousands of dollars.




                                   Available for sale        Held to Maturity

                                          Fair             Carrying       Fair
                                          Value             Amount        Value
                                       ---------           --------     --------
                                                               
Due in one year or less                $  10,963           $    497     $    506
Due from one to five years                50,661              2,488        2,544
Due from five to ten years                 2,934                728          776
Due after ten years                        2,310              1,486        1,486
                                       ---------           --------     --------
                                       $  66,868           $  5,199     $  5,312
                                       =========           ========     ========




LOANS

Loans at September 30, 2003 decreased $661,000 from December 31, 2002. The table
below shows total loans outstanding by type, in thousands of dollars, at
September 30, 2003 and December 31, 2002 and their percentages of the total loan
portfolio. All loans are domestic. A quarterly review of loan concentrations at
September 30, 2003 indicates the pattern of loans in the portfolio has not
changed significantly. There is no individual industry with more than a 10%
concentration. However, all tourism related businesses, when combined, total
10.4% of total loans.




                                       8










                                                    September 30, 2003               December 31, 2002
                                                   Balance     % of total         Balance      % of total
                                                   -------     ----------         -------      ----------
                                                                                     
Portfolio loans:
   Residential real estate                       $  90,404        62.09%        $  92,653         63.32%
   Consumer                                         10,235         7.03%           11,270          7.70%
   Commercial real estate                           35,741        24.55%           31,581         21.58%
   Commercial                                        9,226         6.33%           10,824          7.40%
                                                 -----------------------        ------------------------
                                                   145,606       100.00%          146,328        100.00%
   Deferred loan origination fees, net                 (15)                           (22)
   Allowance for loan losses                        (1,615)                        (1,669)
                                                 ---------                      ---------
   Loans, net                                    $ 143,976                      $ 144,637
                                                 =========                      =========




ALLOWANCE FOR LOAN LOSSES

An analysis of the allowance for loan losses, in thousands of dollars, for the
nine months ended September 30, follows:



                                                  2003          2002
                                                ---------     --------
                                                        
Beginning balance                               $   1,669     $  1,667
Provision for loan losses                              --           --
Charge-offs                                           (65)         (38)
Recoveries                                             11           52
                                                ---------     --------
Ending balance                                  $   1,615     $  1,681
                                                =========     ========




The Company has had no impaired loans during 2003 and 2002.

CREDIT QUALITY

The Company maintains a high level of asset quality as a result of actively
managing delinquencies, nonperforming assets and potential loan problems. The
Company performs an ongoing review of all large credits to watch for any
deterioration in quality. Nonperforming loans are comprised of: (1) loans
accounted for on a nonaccrual basis; (2) loans contractually past due 90 days or
more as to interest or principal payments (but not included in nonaccrual loans
in (1) above); and (3) other loans whose terms have been renegotiated to provide
a reduction or deferral of interest or principal because of a deterioration in
the financial position of the borrower (exclusive of loans in (1) or (2) above).
The aggregate amount of nonperforming loans is shown in the table below.





                                                      September 30,    December 31,
                                                          2003            2002
                                                         (dollars in thousands)
                                                                  
Nonaccrual                                            $       --        $     --
Loans past due 90 days or more                               107             114
Troubled debt restructurings                                  --              --
                                                      ----------        --------
    Total nonperforming loans                         $      107        $    114
                                                      ==========        ========

Percent of total loans                                     0.07%           0.08%




                                       9






DEPOSITS

Deposits at September 30, 2003 increased $14.0 million since December 31, 2002.
The growth can be attributed to seasonal activity which allowed a $6.3 million
increase in noninterest bearing deposits and $7.7 million increase in interest
bearing deposits.


LIQUIDITY AND FUNDS MANAGEMENT

As of September 30, 2003, the Company had $13.4 million in federal funds sold,
$66.9 million in securities available for sale and $497,000 in held to maturity
securities maturing within one year. These sources of liquidity are supplemented
by new deposits and loan payments received by customers. These short-term assets
represent 35.0% of total deposits as of September 30, 2003.

Total equity of the Company at September 30, 2003 was $25.9 million compared to
$24.7 million at December 31, 2002.


RESULTS OF OPERATIONS

CNB Corporation's 2003 net income for the first nine months was $3.1 million an
increase of $106,000 compared to the same period in 2002. Basic earnings per
share was $2.58 for the nine months ended 2003 and $2.48 for the same period in
2002. The return on average assets was 1.62% compared to 1.66% for 2002. The
return on average equity was 16.00% compared to 16.25% for 2002.

Net income for the three months ending September 30, 2003 was $1.1 million
compared to $1.0 million for the same period in 2002. This was an increase of
$77,000 or 7.5%. Basic earnings per share was $0.93 compared to $0.86 for 2002.
The return on average assets was 1.67% compared to 1.66% for 2002. The return on
average equity was 17.02% compared to 16.40% for 2002.

For the first nine months of 2003, net interest income was $7.5 million, an
increase of $631,000 or 9.1% compared to 2002 results. The Corporation
experienced a decline in both interest income and interest expenses compared to
2002 results which can be attributed to a continuing decline in the rate
environment. The decline in interest expense on deposits exceeded the decline in
overall interest income which resulted in an overall increase in the net
interest income. The Company reported a net interest margin of 4.22% for 2003
compared to 4.12% for 2002. Net interest income for the three month period
ending September 30, 2003 was $2.5 million compared to $2.4 million for 2002.
Again the decline in interest expense on deposits exceeded the decline in
overall interest income.

Noninterest income for the nine month period ending September 30, 2003 was $1.6
million, an increase of $153,000 or 10.5% over the same period last year. This
can be attributed to an increase in the net realized gain on the sale of loans
as a result of increasing sales of mortgages to the secondary market. With an
increase in mortgage rates this trend is not expected to continue throughout the
rest of 2003. Also, during 2003 the Company realized income from life insurance
proceeds amounting to $125,000 compared to $105,000 during 2002. Noninterest
income for the three month period ending September 30, 2003 was $649,000
compared to $545,000 for 2002. The increase is due to $125,000 in life insurance
proceeds that were recorded in the third quarter of 2003.

Noninterest expense for the nine month period ending September 30, 2003 was $4.9
million compared to $4.3 million for 2002. This is an increase of $638,000, or
14.9%. The increase can be attributed to the fact the Company continues to fund
100% of the employee's health insurance and to


                                       10






offer a defined benefit pension plan; both of these expenses account for
$130,000 of the increase. In addition, there was an increase of $130,000 in
employee wages from 2002 to 2003. For 2003, the Company changed the discount
rate for calculation of the 1985 directors deferred compensation plan which
account for $217,000 of the annual increase to noninterest expense.

ITEM 3-QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

The primary source of market risk for the financial instruments held by the
Company is interest rate risk. That is, the risks that an adverse change in
market rates will adversely affect the market value of the instruments.
Generally, the longer the maturity, the higher the interest rate risk exposure.
While maturity information does not necessarily present all aspects of exposure,
it may provide an indication of where risks are prevalent.

All financial institutions assume interest rate risk as an integral part of
normal operations. Managing and measuring interest rate risk is a dynamic,
multi-faceted process that ranges from reducing the exposure of the Company's
net interest margin to swings in interest rates, to assuring sufficient capital
and liquidity to support future balance sheet growth. The Company manages
interest rate risk through the Asset Liability Committee. The Asset Liability
Committee is comprised of bank officers from various disciplines. The Committee
establishes policies and rates which lead to prudent investment of resources,
the effective management of risks associated with changing interest rates, the
maintenance of adequate liquidity, and the earning of an adequate return of
shareholders' equity.

Management believes that there has been no significant changes to the interest
rate sensitivity since the presentation in the December 31, 2002 Management
Discussion and Analysis appearing in the December 31, 2002 10-K.

ITEM 4-CONTROLS AND PROCEDURES

Within the 90-day period prior to the filing date of this report, an evaluation
was carried out under the supervision and with the participation of CNB
Corporation's management, including our Chief Executive Officer and Treasurer
who serves as our Chief Financial Accounting Officer, of the effectiveness of
our disclosure controls and procedures (as defined in Exchange Act Rules
13a-14(c) and 15d-14(c) under the Securities Exchange Act of 1934). Based on
their evaluation, our Chief Executive Officer and Treasurer have concluded that
the Company's disclosure controls and procedures are, to the best of their
knowledge, effective to ensure that information required to be disclosed by CNB
Corporation in reports that it files or submits under the Exchange Act is
recorded, processed, summarized and reported within the time periods specified
in the Securities and Exchange Commission rules and forms.

Subsequent to the date of their evaluation, our Chief Executive Officer and
Treasurer have concluded that there were no significant changes in CNB
Corporation's internal controls or in other factors that could significantly
affect its internal controls, including any corrective actions with regard to
significant deficiencies and material weaknesses.


                                       11






PART II-OTHER INFORMATION

ITEM 4-SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

         None

ITEM 6-EXHIBITS AND REPORTS OF FORM 8-K

    a.)  None
    b.)  None


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

                                           CNB Corporation
                                           -------------------------------------
                                                      (Registrant)


Date:  November 13, 2003                   /s/ Robert E. Churchill
                                           -------------------------------------
                                           Robert E. Churchill
                                           Chairman and Chief Executive Officer


Date:  November 13, 2003                   /s/ James C. Conboy, Jr.
                                           -------------------------------------
                                           James C. Conboy, Jr.
                                           President and Chief Operating Officer



                                       12






                               10-Q EXHIBIT INDEX



EXHIBIT NO.                       DESCRIPTION

EX-31          Certification of Chief Executive Officer pursuant to Section 302.


EX-31.2        Certification of Treasurer pursuant to Section 302.

EX-32          Certification pursuant to 18 U.S.C. Section 1350, as adopted
               pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.




                                       13