CERTIFICATION

            Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

     Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a)
and (b) of section 1350, chapter 63 of title 18, United States Code), each of
the undersigned officers of The Hartford Mutual Funds, Inc. does hereby certify,
to such officer's knowledge, that:

     The semi-annual report on Form N-CSR of The Hartford Mutual Funds, Inc. for
     the period ended April 30, 2007 (the "Form N-CSR") fully complies with the
     requirements of Section 13(a) or 15(d) of the Securities Exchange Act of
     1934 and information contained in the Form N-CSR fairly presents, in all
     material respects, the financial condition and results of operations of the
     Fund.


Date: June 19, 2007                     By: /s/ David M. Znamierowski
                                            ------------------------------------
                                            David M. Znamierowski
                                        Its: President


Date: June 19, 2007                     By: /s/ Tamara L. Fagely
                                            ------------------------------------
                                            Tamara L. Fagely
                                        Its: Vice President, Controller and
                                             Treasurer

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