Exhibit (b)
EX-99.906CERT
SECTION 906 CERTIFICATIONS
Mark E. Swanson, President, Chief Executive Officer, Treasurer, Chief Accounting Officer and
Chief Financial Officer of Russell Investment Funds, a Massachusetts Business Trust (the
“Registrant”), certifies that:
1. The Registrant’s periodic report on Form N-CSR for the period ended December 31, 2016
(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.
Russell Investment Funds
Mark E. Swanson
President, Chief Executive Officer, Treasurer, Chief Accounting Officer and Chief Financial
Officer, Russell Investment Funds
Date: February 17, 2017