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                UNITED STATES SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549


                                    FORM 10-K


   [mark one]

      [X]      ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
               SECURITIES EXCHANGE ACT OF 1934

               FOR THE FISCAL YEAR ENDED DECEMBER 31, 2003

                                       OR

      [_]      TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
               SECURITIES EXCHANGE ACT OF 1934


                         Commission File Number 0-12784


                              WESTBANK CORPORATION
                              --------------------

     Massachusetts                                     04-2830731
- ------------------------                 ---------------------------------------
(State of Incorporation)                 (I.R.S. Employer Identification Number)


225 Park Avenue, West Springfield, Massachusetts                      01090-0149
- ------------------------------------------------                      ----------
(Address of principal executive office)                               (Zip Code)

  (413) 747-1400
- ------------------
(Telephone Number)


           Securities registered pursuant to Section 12(b) of the Act:

                                                          Name of each exchange
Title of each class                                        on which registered
- -------------------                                        -------------------

       NONE                                                        NONE

           Securities registered pursuant to Section 12(g) of the Act:

                          Common stock, $2.00 Par Value
                        Preferred stock, $5.00 Par Value
                        --------------------------------
                                (Title of Class)


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 ninety days.     Yes [X]      No [_]

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K is not contained herein, and will not be contained, to the
best of the registrant's knowledge, in definitive proxy or information
statements incorporated by reference in Part III of this Form 10-K or any
amendment to this Form 10-K.  [X]

Based on the closing sales price on March 1, 2004, the aggregate market value of
the voting stock held by non-affiliates of the registrant was $101,686,176.

The number of shares outstanding of the registrant's common stock, $2.00 par
value, was 4,459,920 on March 1, 2004.

Portions of the Annual Report to Stockholders for the year ended December 31,
2003 are incorporated by reference into Parts I and II.

Portions of the Proxy Statement issued by the Corporation in connection with the
Annual Meeting to be held on April 21, 2004 are incorporated by reference into
Part III.

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                              WESTBANK CORPORATION

                               INDEX TO FORM 10-K



PART I
- ------

Item 1         Business                                                    I - 1

Item 2         Properties                                                  I - 2

Item 3         Legal Proceedings                                           I - 2

Item 4         Submission of Matters to a Vote of Security Holders         I - 2



PART II
- -------

Item 5         Market for the Corporation's Common Stock
               and Related Stockholder Matters                            II - 1

Item 6         Selected Financial Data                                    II - 1

Item 7         Management's Discussion and Analysis of
               Financial Condition and Results of Operations           II - 1, 2

Item 7A        Quantitative and Qualitative Disclosures About
               Market Risk                                             II - 1, 2

Item 8         Financial Statements and Supplementary Data                II - 2

Item 9         Changes in and Disagreements with Accountant
               on Accounting and Financial Disclosure                     II - 2

Item 9A        Controls and Procedures                                    II - 2



PART III
- --------

Item 10        Directors and Executive Officers of the Registrant        III - 1

Item 11        Executive Compensation                                    III - 1

Item 12        Security Ownership of Certain
               Beneficial Owners and Management                          III - 1

Item 13        Certain Relationships and Related Transactions            III - 1

Item 14        Principal Accounting Fees and Services                    III - 1



PART IV
- -------

Item 15        Exhibits, Financial Statement Schedules and
               Reports on Form 8-K                                        IV - 1

               Signatures                                                 IV - 2

               Exhibit Index                                              IV - 3

              WESTBANK CORPORATION, WEST SPRINGFIELD, MASSACHUSETTS


                                     PART I
                                     ------

ITEM 1    BUSINESS
- ------    --------

Reference is made to Page 4 of the Corporation's Annual Report to Stockholders
for the year ended December 31, 2003, wherein this subject is covered.

Statistical Disclosure by Bank Holding Companies
- ------------------------------------------------

The following statistical tables and accompanying text provide required
financial data about the Corporation and should be read in conjunction with the
Consolidated financial statements and related notes, appearing in the 2003
Annual Report to Stockholders and is incorporated herein by reference thereto:

                                                                         Page of
                                                                   Annual Report
                                                                   -------------

I.    Distribution of Assets, Liabilities and Stockholders' Equity:
      Interest Rates and Interest Differential                         10 and 11

      Rate/Volume Analysis of Interest Margin on Earning Assets               12


II.   Investment Portfolio                         13, 14, 30, 33, 34, 44 and 45


III.  Loan Portfolio                               14, 15, 32, 34, 35, 44 and 45

      a.  Types of Loans                                               15 and 34

      b.  Maturities and Sensitivities to Changes
          in Interest Rates                                          9,10 and 14

      c.  Risk Elements                             9, 15, 16, 17, 18, 34 and 35


IV.   Summary of Loan Loss Experience                              15, 16 and 34


V.    Deposits                                                 18, 36, 44 and 45


VI.   Return on Equity and Assets                                             18


VII.  Short Term Borrowings                                18, 36, 37, 44 and 45










                                       I-1

ITEM 2    PROPERTIES
- ------    ----------

The Corporation had one principal banking subsidiary, Westbank, which operates
seventeen banking offices located in Massachusetts and Connecticut, as follows:

          ===================================    =====    ======    =====
                       LOCATION                  OWNED    LEASED    TOTAL
                   (MASSACHUSETTS)
          -----------------------------------    -----    ------    -----
          Agawam (Feeding Hills)                            1         1
          -----------------------------------    -----    ------    -----
          Chicopee                                 1                  1
          -----------------------------------    -----    ------    -----
          Chicopee - Supemarket                             1         1
          -----------------------------------    -----    ------    -----
          East Longmeadow                          1                  1
          -----------------------------------    -----    ------    -----
          East Longmeadow - Supemarket                      1         1
          -----------------------------------    -----    ------    -----
          Holyoke                                  1                  1
          -----------------------------------    -----    ------    -----
          Ludlow                                   1                  1
          -----------------------------------    -----    ------    -----
          Southwick                                         1         1
          -----------------------------------    -----    ------    -----
          Webster                                           1         1
          -----------------------------------    -----    ------    -----
          West Springfield                         2        1         3
          -----------------------------------    -----    ------    -----
          Westfield                                1                  1
          -----------------------------------    -----    ------    -----
          Westfield - Supermarket                           1         1
          -----------------------------------    -----    ------    -----
                    (CONNECTICUT)
          -----------------------------------    -----    ------    -----
          Putnam                                   1        1         2
          -----------------------------------    -----    ------    -----
          Woodstock                                         1         1
          -----------------------------------    -----    ------    -----
          Danielson                                1                  1
          -----------------------------------    -----    ------    -----
                           TOTALS                  9        9        18
          ===================================    =====    ======    =====

All banking offices except the one in Holyoke, Massachusetts, and the
supermarket offices have drive-in facilities and twenty-four hour automated
teller machines.

Title to the properties described as owned in the foregoing table is held by
Westbank with warranty deed with no material encumbrances. Westbank owns, with
no material encumbrances, land adjacent to the main office which is available
for parking and, through a subsidiary, also owns one other property adjacent to
the main office consisting of land also used as a parking lot.

ITEM 3    LEGAL PROCEEDINGS
- ------    -----------------

Certain litigation is pending against the Corporation and the its subsidiaries.
Management, after consultation with legal counsel, does not anticipate that any
liability arising out of such litigation will have a material effect on the
Corporation's Financial Statements.

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

No matters were submitted to a vote of security holders during the fourth
quarter of 2003.
                                       I-2

                                     PART II
                                     -------


ITEM 5    MARKET FOR CORPORATION'S COMMON STOCK
- ------    AND RELATED STOCKHOLDER MATTERS
          -------------------------------

Reference is made to the inside back cover of the Corporation's Annual Report to
Stockholders for the year ended December 31, 2003, wherein this subject is
covered.


ITEM 6    SELECTED FINANCIAL DATA
- ------    -----------------------

Reference is made to Page 5 of the Corporation's Annual Report to Stockholders
for the year ended December 31, 2003, wherein this subject is covered.


ITEM 7    MANAGEMENT'S DISCUSSION AND ANALYSIS OF
- ------    FINANCIAL CONDITION AND RESULTS OF OPERATIONS
          ---------------------------------------------

Reference is made to Pages 6 through 22 of the Corporation's Annual Report to
Stockholders for the year ended December 31, 2003, wherein this subject is
covered.


ITEM 7A   QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
- -------   ----------------------------------------------------------

Reference is made to Pages 9 and 10 of the Corporation's Annual Report to
Stockholders for the year ended December 31, 2003, wherein the subject matter is
covered.


Information Concerning Forward-Looking Statements; Safe Harbor
- --------------------------------------------------------------

The following forward-looking statements are made in accordance with the Private
Securities Litigation Reform Act of 1995.

The Corporation has made, and may make in the future, forward-looking statements
concerning future performance, including, but not limited to, future earnings
and events or conditions that may affect such future performance. These
forward-looking statements are based upon management's expectations and belief
concerning possible future developments and the potential effect of such future
developments on the Corporation. There is no assurance that such future
developments will be in accordance with management's expectations and belief or
that the effect of any future developments on the Corporation will be those
anticipated by management.

All assumptions that form the basis of any forward-looking statements regarding
future performance, as well as events or conditions that may affect such future
performance, are based on factors that are beyond the Corporation's ability to
control or predict with precision, including future market conditions and the
behavior of other market participants. Among the factors that could cause actual
results to differ materially from such forward-looking statements are the
following:

1.   The status of the economy in general, as well as in the Corporation's
     primary market areas of western Massachusetts and northeastern Connecticut;
2.   The real estate market in western Massachusetts and northeastern
     Connecticut;
3.   Competition in the Corporation's primary market area from other banks,
     especially in light of continued consolidation in the New England banking
     industry;
4.   Any changes in federal and state bank regulatory requirements;
5.   Changes in interest rates;
6.   The cost and other effects of unanticipated legal and administrative cases
     and proceedings, settlements and investigations;
7.   Unanticipated changes in laws and regulations, including federal and state
     banking laws and regulations, to which the Corporation and its subsidiaries
     are subject;


                                      II-1

                               PART II (CONTINUED)
                               -------------------


8.   Changes in accounting policies and practices, as may be adopted by the
     Financial Accounting Standards Board or any regulatory agency having
     authority over the Corporation and/or its subsidiaries; and
9.   Disruption in general economic conditions due to military or terrorist
     activity.


Forward-looking statements speak only as of the date they were made. While the
Corporation periodically reassesses material trends and uncertainties affecting
the Corporation's performance in connection with its preparation of management's
discussion and analysis of results of operations and financial condition
contained in its quarterly and annual reports, the Corporation does not intend
to review or revise any particular forward-looking statement.


ITEM 8    FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
- ------    -------------------------------------------

Reference is made to Pages 23 through 48 of the Corporation's Annual Report to
Stockholders for the year ended December 31, 2003, wherein this subject is
covered.


ITEM 9    CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS
- ------    ON ACCOUNTING AND FINANCIAL DISCLOSURE
          --------------------------------------
          NONE


ITEM 9A   CONTROLS AND PROCEDURES
- -------   -----------------------

Within 90 days prior to the filing date of this report, the Corporation carried
out an evaluation, under the supervision and with the participation of the
Corporation's management, including the Corporation's Chief Executive Officer
and Chief Financial Officer, of the effectiveness of the design and operation of
the Corporation's disclosure controls and procedures. Based on that evaluation,
the Chief Executive Officer and Chief Financial Officer concluded that the
Corporation's disclosure controls and procedures are effective to ensure that
information required to be disclosed by the Corporation in the reports that it
files or submits under the securities Exchange Act of 1934 is recorded,
processed, summarized and reported within the time periods specified in the
Securities and Exchange Commission's rules and forms.

There were no significant changes in the Corporation's internal controls or in
other factors that could significantly affect internal controls subsequent to
the date of their evaluations.




                                      II-2

                                    PART III
                                    --------


ITEM 10   DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT
- -------   --------------------------------------------------

Reference is made to Pages 4 through 9 of the Corporation's Proxy Statement to
Stockholders for the 2004 Annual Meeting scheduled for April 21, 2004, wherein
this subject is covered.

The Board of Directors has determined that George R. Sullivan, a member of the
Board of Directors and the Audit Committee, is qualified as an Audit Committee
Financial Expert within the meaning of SEC regulations.


ITEM 11   EXECUTIVE COMPENSATION
- -------   ----------------------

References is made to Pages 12 through 17 of the Corporation's Proxy Statement
to Stockholders for the 2004 Annual Meeting scheduled for April 21, 2004,
wherein this subject is covered.


ITEM 12   SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT
- -------   --------------------------------------------------------------

Reference is made to Pages 10 and 11 of the Corporation's Proxy Statement to
Stockholders for the 2004 Annual Meeting scheduled for April 21, 2004, wherein
this subject is covered.


ITEM 13   CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS
- -------   ----------------------------------------------

Reference is made to Pages 10 through 20, of the Corporation's Proxy Statement
to Stockholders for the 2004 Annual Meeting scheduled for April 21, 2004,
wherein this subject is covered under the caption "Beneficial Ownership of Stock
and Executive Compensation - Miscellaneous".


ITEM 14   PRINCIPAL ACCOUNTING FEES AND SERVICES
- -------   --------------------------------------

Reference is made to Page 8 of the Corporation's Proxy Statement for
stockholders for the 2004 Annual Meeting scheduled for April 21, 2004 wherein
this subject is covered.







                                      III-1

                                     PART IV
                                     -------


ITEM 15   EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K
- -------   ---------------------------------------------------------------

The following documents are filed as a part of this report:

          1.   Financial Statements

               The following financial statements are incorporated in this
               Annual Report on Form 10-K by reference to the Corporation's
               Annual Report to Stockholders for the year ended December 31,
               2003:

                              WESTBANK CORPORATION
                              --------------------
                                                                         Page of
                                                                          Annual
                                                                          Report
                                                                          ------

               Independent Auditors' Reports ......................... 49 and 50
               Consolidated Balance Sheets at December 31, 2003
                   and 2002 ..........................................        23
               Consolidated Statements of Income for the years
                   ended December 31, 2003, 2002 and 2001 ............        24
               Consolidated Statement of Stockholders' Equity
                   from January 1, 2001, to December 31, 2003 ........        25
               Consolidated Statements of Comprehensive Income
                   for the years ended December 31, 2003, 2002
                   and 2001 ..........................................        25
               Consolidated Statements of Cash Flows for the
                   years ended December 31, 2003, 2002 and 2001 ......        26
               Notes to Consolidated Financial Statements ............   27 - 48



               Reports on Form 8-K:
                   On April 4, 2003, the Corporation filed Form 8-K announcing a
                      change in certifying accountants.
                   On July 17, 2003, the Corporation filed Form 8-K announcing
                      the financial results for the quarter ended June 30, 2003.
                   On October 17, 2003, the Corporation filed Form 8-K
                      announcing the financial results for the quarter ended
                      September 30, 2003.
                   On February 3, 2004, the Corporation filed Form 8-K
                      announcing the financial results for the quarter ended
                      December 31, 2003.


          2.   Financial Statement Schedules

               Financial Statement Schedules are omitted because they are
               inapplicable or not required.


          3.   Exhibits

               See accompanying Exhibit Index.



                                      IV-1

                                   SIGNATURES

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.

                                       WESTBANK CORPORATION

                                       By: /s/ Donald R. Chase
                                           -------------------------------------
                                           Donald R. Chase
                                           PRESIDENT AND CHIEF EXECUTIVE OFFICER

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

SIGNATURE                        TITLE                             DATE
- --------------------------------------------------------------------------------

/s/ Donald R. Chase              PRESIDENT AND                     March 4, 2004
- ---------------------------      CHIEF EXECUTIVE OFFICER
Donald R. Chase                  AND DIRECTOR


/s/ Ernest N. Laflamme, Jr.      CHAIRMAN OF THE BOARD             March 4, 2004
- ---------------------------      AND DIRECTOR
Ernest N. Laflamme, Jr.


/s/ John M. Lilly                TREASURER AND                     March 4, 2004
- ---------------------------      CHIEF FINANCIAL OFFICER
John M. Lilly


/s/ Roland O. Archambault        DIRECTOR                          March 4, 2004
- ---------------------------
Roland O. Archambault


/s/ Mark A. Beauregard           DIRECTOR                          March 4, 2004
- ---------------------------
Mark A. Beauregard


/s/ David R. Chamberland         DIRECTOR                          March 4, 2004
- ---------------------------
David R. Chamberland


/s/ G. Wayne McCary              DIRECTOR                          March 4, 2004
- ---------------------------
G. Wayne McCary


/s/ Robert J. Perlak             CORPORATE CLERK                   March 4, 2004
- ---------------------------      AND DIRECTOR
Robert J. Perlak


/s/ George R. Sullivan           DIRECTOR                          March 4, 2004
- ---------------------------
George R. Sullivan


/s/ James E. Tremble             DIRECTOR                          March 4, 2004
- ---------------------------
James E. Tremble
                                      IV-2

                                  EXHIBIT INDEX




                                                                        Page No.
                                                                        --------


3.      Articles of Organization and By-Laws, as amended                      **

        (a) Articles of Organization, as amended                               *

        (b) By-Laws, as amended                                                *

10.1    Employment Agreement

10.2    Form of Change of Control Agreements

21.     Subsidiaries of Registrant                                TO BE INCLUDED

31.1    Certification of Chief Executive Officer, pursuant to
        Section 302 of the Sarbanes-Oxley Act of 2002

31.2    Certification of Chief Financial Officer, pursuant to
        Section 302 of the Sarbanes-Oxley Act of 2002

32.1    Certification of Chief Executive Officer, pursuant to
        Section 906 of the Sarbanes-Oxley Act of 2002

32.2    Certification of Treasurer and Chief Financial Officer
        pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

99.2    Portions of the Corporation's Annual Report to Stockholders
        for year-end 2003 incorporated by reference into this annual
        report on Form 10-K








*    Incorporated by reference to identically numbered exhibits contained in
     Registrant's Annual Report on Form 10-K for the year ended December 31,
     1988.

**   Incorporated by reference to identically numbered exhibits contained in
     Registrant's Annual Report on Form 10-K for the year ended December 31,
     1987.













                                      IV-3