Exhibit (a)(2)(1)

                             Loomis Sayles Funds II
                            Exhibit to SEC Form N-CSR
                            Section 302 Certification

I, Robert J. Blanding, certify that:

        1.      I have reviewed this report on Form N-CSR of Loomis Sayles Funds
                II;

        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 materials 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 officer 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) and internal control over financial
                reporting (as defined in Rule 30a-3(d) 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.      Designed such internal control over financial
                                reporting, or caused such internal control over
                                financial reporting to be designed under our
                                supervision, to provide reasonable assurance
                                regarding the reliability of financial reporting
                                and the preparation of financial statements for
                                external purposes in accordance with generally
                                accepted accounting principles;
                        c.      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; and
                        d.      Disclosed in this report any change in the
                                registrant's internal control over financial
                                reporting that occurred during the second fiscal
                                quarter of the period covered by this 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
                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 28, 2005

                                /s/ Robert J. Blanding
                                Robert J. Blanding
                                Chief Executive Officer




                                                               Exhibit (a)(2)(2)

                             Loomis Sayles Funds II
                            Exhibit to SEC Form N-CSR
                            Section 302 Certification

I, Michael C. Kardok, certify that:

        1.      I have reviewed this report on Form N-CSR of Loomis Sayles Funds
                II;

        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 materials 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 officer 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) and internal control over financial
                reporting (as defined in Rule 30a-3(d) 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.      Designed such internal control over financial
                                reporting, or caused such internal control over
                                financial reporting to be designed under our
                                supervision, to provide reasonable assurance
                                regarding the reliability of financial reporting
                                and the preparation of financial statements for
                                external purposes in accordance with generally
                                accepted accounting principles;
                        c.      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; and
                        d.      Disclosed in this report any change in the
                                registrant's internal control over financial
                                reporting that occurred during the second fiscal
                                quarter of the period covered by this 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
                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 28, 2005

                                /s/ Michael C. Kardok
                                Michael C. Kardok
                                Treasurer