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 II, Inc. does hereby
certify, to such officer's knowledge, that:

     The annual report on Form N-CSR of The Hartford Mutual Funds II, Inc. for
     the period ended October 31, 2005 (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: December 15, 2005               By: /s/ David M. Znamierowski
                                         --------------------------------------
                                          David M. Znamierowski
                                          Its: President


Date: December 15, 2005               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 II, Inc. and will be retained by The
Hartford Mutual Funds II, Inc. and furnished to the Securities and Exchange
Commission or its staff upon request.