Exhibit 31

                      Certification Pursuant to Section 302
                        Of the Sarbanes-Oxley Act of 2002
                         For the Chief Executive Officer

I, Kent A. Steinwert, certify that:
1.   I have reviewed this quarterly report on Form 10-Q of Farmers & Merchants
     Bancorp;
2.   Based on my knowledge, this report does not contain any untrue statement of
     a material fact or omit to state a material fact necessary to make the
     statements made, in light of the circumstances under which such statements
     were made, not misleading with respect to the period covered by this
     report;
3.   Based on my knowledge, the financial statements, and other financial
     information included in this report, fairly present in all material
     respects the financial condition, results of operations and cash flows of
     the registrant as of, and for, the periods presented in this report;
4.   The registrant's other certifying officer and I are responsible for
     establishing and maintaining disclosure controls and procedures (as defined
     in Exchange Act Rules 13a-15(e) and 15d-15(e)) and have:
         (a) Designed such disclosure controls and procedures, or caused such
         disclosure controls and procedures to be designed under our
         supervision, to ensure that material information relating to the
         registrant, including its consolidated subsidiaries, is made known to
         us by others within those entities, particularly during the period in
         which this report is being prepared; (b) Evaluated the effectiveness of
         the registrant's disclosure controls and procedures and presented in
         this report our conclusions about the effectiveness of the disclosure
         controls and procedures, as of the end of the period covered by this
         report based on such evaluation; and (c) Disclosed in this report any
         change in the registrant's internal control over financial reporting
         that occurred during the registrant's most recent fiscal quarter (the
         registrant's fourth fiscal quarter in the case of an annual report)
         that has materially affected, or is reasonably likely to materially
         affect, the registrant's internal control over financial reporting; and
5.   The registrant's other certifying officer and I have disclosed, based on
     our most recent evaluation of internal control over financial reporting, to
     the registrant's auditors and the audit committee of the registrant's board
     of directors (or persons performing the equivalent functions):
         (a) All significant deficiencies and material weaknesses in the design
         or operation of internal control over financial reporting which are
         reasonably likely to adversely affect the registrant's ability to
         record, process, summarize and report financial information; and (b)
         Any fraud, whether or not material, that involves management or other
         employees who have a significant role in the registrant's internal
         control over financial reporting.

Date: November 8, 2004
                                           /s/ Kent A. Steinwrt
                                           ------------------------------
                                           Kent A. Steinwert
                                           President & Chief Executive Officer




                                                                     Exhibit 31

                      Certification Pursuant to Section 302
                        Of the Sarbanes-Oxley Act of 2002
                         For the Chief Financial Officer

I, Stephen W. Haley, certify that:
1.   I have reviewed this quarterly report on Form 10-Q of Farmers & Merchants
     Bancorp;
2.   Based on my knowledge, this report does not contain any untrue statement of
     a material fact or omit to state a material fact necessary to make the
     statements made, in light of the circumstances under which such statements
     were made, not misleading with respect to the period covered by this
     report;
3.   Based on my knowledge, the financial statements, and other financial
     information included in this report, fairly present in all material
     respects the financial condition, results of operations and cash flows of
     the registrant as of, and for, the periods presented in this report;
4.   The registrant's other certifying officer and I are responsible for
     establishing and maintaining disclosure controls and procedures (as defined
     in Exchange Act Rules 13a-15(e) and 15d-15(e)) and have:
         (a) Designed such disclosure controls and procedures, or caused such
         disclosure controls and procedures to be designed under our
         supervision, to ensure that material information relating to the
         registrant, including its consolidated subsidiaries, is made known to
         us by others within those entities, particularly during the period in
         which this report is being prepared; (b) Evaluated the effectiveness of
         the registrant's disclosure controls and procedures and presented in
         this report our conclusions about the effectiveness of the disclosure
         controls and procedures, as of the end of the period covered by this
         report based on such evaluation; and (c) Disclosed in this report any
         change in the registrant's internal control over financial reporting
         that occurred during the registrant's most recent fiscal quarter (the
         registrant's fourth fiscal quarter in the case of an annual report)
         that has materially affected, or is reasonably likely to materially
         affect, the registrant's internal control over financial reporting; and
5.   The registrant's other certifying officer and I have disclosed, based on
     our most recent evaluation of internal control over financial reporting, to
     the registrant's auditors and the audit committee of the registrant's board
     of directors (or persons performing the equivalent functions):
         (a) All significant deficiencies and material weaknesses in the design
         or operation of internal control over financial reporting which are
         reasonably likely to adversely affect the registrant's ability to
         record, process, summarize and report financial information; and (b)
         Any fraud, whether or not material, that involves management or other
         employees who have a significant role in the registrant's internal
         control over financial reporting.

Date: November 8, 2004
                                                /s/ Stephen W. Haley
                                                ------------------------------
                                                Stephen W. Haley
                                                Executive Vice President
                                                & Chief Financial Officer