EX-99.906CERT

                           SECTION 906 CERTIFICATIONS

Leonard P. Brennan, Principal Executive Officer and Chief Executive Officer; and
Mark E. Swanson, Principal Financial Officer, Principal Accounting Officer and
Treasurer of Russell Investment Funds, a Massachusetts Business Trust (the
"Registrant"), each certify that:

1.   The Registrant's periodic report on Form N-CSR for the period ended
     December 31, 2003 (the "Form N-CSR") fully complies with the requirements
     of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934,
     as amended, as applicable; and

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

A signed original of this written statement required by Section 906 has been
provided to Russell Investment Funds and will be retained by Russell Investment
Funds and furnished to the Securities and Exchange Commission or its staff upon
request.

Principal Executive Officer and             Principal Financial Officer,
Chief Executive Officer                              Principal Accounting
Russell Investment Funds                    Officer and Treasurer
                                                     Russell Investment Funds

/s/ Leonard P. Brennan                        /s/ Mark E. Swanson
- -------------------------------               ----------------------------------
Leonard P. Brennan                          Mark E. Swanson

Date: February 12, 2004                       Date: February 12, 2004