UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549

                                    FORM 8-K

                                 CURRENT REPORT
     Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934

       Date of Report (Date of earliest event reported): October 3, 2007

                                COLUMBIA BANCORP
                                ----------------
             (Exact name of registrant as specified in its charter)

             Oregon                   0-27938                   93-1193156
             -------                  -------                   ----------
  (State or other jurisdiction      (Commission               (IRS Employer
        of incorporation)           File Number)            Identification No.)

                        401 East Third Street, Suite 200,
                            The Dalles, Oregon 97058
                            ------------------------
                    (Address of principal executive offices)

                                 (541) 298-6649
                                 --------------
              (Registrant's telephone number, including area code)

                                 Not Applicable
                                 --------------
          (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

|_|   Written communications pursuant to Rule 425 under the Securities
      Act (17 CFR 230.425)

|_|   Soliciting material pursuant to Rule 14a-12 under the Exchange
      Act (17 CFR 240.14a-12)

|_|   Pre-commencement communications pursuant to Rule 14d-2(b) under the
      Exchange Act (17 CFR ] 240.14d-2(b))

|_|   Pre-commencement communications pursuant to Rule 13e-4(c) under the
      Exchange Act (17 CFR 240.13e-4(c))



Item 5.02. Departure of Directors or Certain Officers; Election of Directors;
Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

(c)   On October 3, 2007, Columbia Bancorp ("Columbia") announced the hiring of
      Brian Devereux, Executive Vice President and Chief Operating Officer for
      its subsidiary, Columbia River Bank. Mr. Devereux's duties will include
      enhancement of the retail support network, continued improvement of the
      loan document processing systems, and evolvement of new products and
      services.

      Mr. Devereux has 17 years of experience in the financial services
      industry. He graduated from the University of Oregon with a B.S. in
      Finance/Marketing. He also holds a Master of Business Administration from
      the University of Portland. Mr. Devereux is 40 years old.

ITEM 9.01   Financial Statements and Exhibits.

Exhibit     Item

99.1       Press Release dated October 3, 2007.



                                   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 hereunto duly authorized.


Dated: October 3, 2007       /s/ Roger L. Christensen
                             ------------------------

                             Roger L. Christensen, President and Chief
                             Executive - Columbia River Bank; President and
                             Chief Executive Officer - Columbia Bancorp


Dated: October 3, 2007       /s/ Greg B. Spear
                             -----------------

                             Greg B. Spear, Vice Chair, Chief Financial Officer
                             - Columbia River Bank and Columbia Bancorp