EX-99.CERT

                       MFS GOVERNMENT MARKETS INCOME TRUST

        CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT


I, Richard M. Hisey, certify that:

1.   I have reviewed this report on Form N-CSR of MFS Government Markets Income
     Trust;

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, changes in net
     assets, and cash flows (if the financial statements are required to
     include a statement of cash flows) of the registrant as of, and for, the
     periods presented in this report;

4.   The registrant's other certifying officers and I are responsible for
     establishing and maintaining disclosure controls and procedures (as
     defined in Rule 30a-3(c) under the Investment Company Act of 1940) for the
     registrant 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 a date
         within 90 days prior to the filing date of this report based on such
         evaluation (the "Evaluation Date"); 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 half-year (the registrant's second fiscal half-year
         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 officers and I have disclosed 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:  January 23, 2004                  RICHARD M. HISEY
       -------------------               ------------------------------------
                                         Richard M. Hisey
                                         Treasurer (Principal Financial
                                         Officer and Accounting Officer)


                                                                     EX-99.CERT

                       MFS GOVERNMENT MARKETS INCOME TRUST

        CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT


I, John W. Ballen, certify that:

1.   I have reviewed this report on Form N-CSR of MFS Government Markets Income
     Trust;

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, changes in net
     assets, and cash flows (if the financial statements are required to
     include a statement of cash flows) of the registrant as of, and for, the
     periods presented in this report;

4.   The registrant's other certifying officers and I are responsible for
     establishing and maintaining disclosure controls and procedures (as
     defined in Rule 30a-3(c) under the Investment Company Act of 1940) for the
     registrant 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 a date
         within 90 days prior to the filing date of this report based on such
         evaluation (the "Evaluation Date"); 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 half-year (the registrant's second fiscal half-year
         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 officers and I have disclosed 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:  January 23, 2004                  JOHN W. BALLEN
       -------------------               ------------------------------------
                                         John W. Ballen
                                         President (Principal Executive Officer)


                                                                  EX-99.906CERT

                       MFS GOVERNMENT MARKETS INCOME TRUST

        CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT

I, Richard M. Hisey, certify that, to my knowledge:

1.   The Form N-CSR (the "Report") of MFS Government Markets Income Trust (the
     "Registrant") fully complies with the requirements of Section 13(a) or
     15(d) of the Securities Exchange Act of 1934; and

2.   The information contained in the Report fairly presents, in all material
     respects, the financial condition and results of operations of the
     Registrant.



Date:  January 23, 2004                  RICHARD M. HISEY
       -------------------               ------------------------------------
                                         Richard M. Hisey
                                         Treasurer (Principal Financial Officer
                                         and Accounting Officer)


A SIGNED ORIGINAL OF THIS WRITTEN STATEMENT REQUIRED BY SECTION 906 HAS BEEN
PROVIDED TO THE REGISTRANT AND WILL BE RETAINED BY THE REGISTRANT AND FURNISHED
TO THE SECURITIES AND EXCHANGE COMMISSION OR ITS STAFF UPON REQUEST.


                                                                  EX-99.906CERT

                       MFS GOVERNMENT MARKETS INCOME TRUST

        CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT

I, John W. Ballen, certify that, to my knowledge:

1.   The Form N-CSR (the "Report") of MFS Government Markets Income Trust (the
     "Registrant") fully complies with the requirements of Section 13(a) or
     15(d) of the Securities Exchange Act of 1934; and

2.   The information contained in the Report fairly presents, in all material
     respects, the financial condition and results of operations of the
     Registrant.



Date:  January 23, 2004                  JOHN W. BALLEN
       -------------------               ------------------------------------
                                         John W. Ballen
                                         President (Principal Executive Officer)


A SIGNED ORIGINAL OF THIS WRITTEN STATEMENT REQUIRED BY SECTION 906 HAS BEEN
PROVIDED TO THE REGISTRANT AND WILL BE RETAINED BY THE REGISTRANT AND FURNISHED
TO THE SECURITIES AND EXCHANGE COMMISSION OR ITS STAFF UPON REQUEST.