Exhibit 32.2

                  CERTIFICATION BY THE CHIEF FINANCIAL OFFICER
                PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT


In connection with the Quarterly  Report of Silgan Holdings Inc. (the "Company")
on Form  10-Q  for the  period  ended  September  30,  2006 as  filed  with  the
Securities and Exchange Commission on the date hereof (the "Quarterly  Report"),
I, Robert B. Lewis, Chief Financial Officer of the Company, certify, pursuant to
18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley
Act of 2002, that, to my knowledge:

     (1) The Quarterly  Report fully complies with the  requirements  of Section
     13(a) or 15(d) of the Securities Exchange Act of 1934; and

     (2) The information  contained in the Quarterly Report fairly presents,  in
     all material respects, the financial condition and results of operations of
     the Company.


/s/ Robert B. Lewis
- -------------------
Robert B. Lewis
Executive Vice President and
Chief Financial Officer

November 9, 2006


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