EXHIBIT 13.1
CERTIFICATION OF CEO AND CFO PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED
PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report on Form 20-F of ASML Holding N.V. (the
"Company") for the fiscal year ended December 31, 2003 as filed with the
Securities and Exchange Commission on the date hereof (the "Report"), Doug Dunn,
as Chief Executive Officer of the Company, and Peter T.F.M. Wennink, as Chief
Financial Officer of the Company, each hereby certifies, pursuant to 18 U.S.C.
Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of
2002, that, to the best of his knowledge:

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

/s/ Doug J. Dunn
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Name: Doug J. Dunn
Title: Chief Executive Officer
Date: January 30, 2004

/s/ Peter T.F.M. Wennink
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Name: Peter T.F.M. Wennink
Title: Chief Financial Officer
Date: January 30, 2004

A signed original of this written statement required by Section 906 of the
Sarbanes-Oxley Act of 2002 has been provided to the Company and will be retained
by the Company and furnished to the Securities and Exchange Commission or its
staff upon request.

This certification accompanies the Report pursuant to section 906 of the
Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the
Sarbanes-Oxley Act of 2002, be deemed filed by the Company for purposes of
section 18 of the Securities Exchange Act of 1934.