As filed with the Securities and Exchange Commission on September 22, 2004

Registration Statement No. 333-                    

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

FORM S-3
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933

P. H. Glatfelter Company

Markus R. Mueller
General Counsel, Secretary and
Director of Policy & Compliance
P. H. Glatfelter Company
96 S. George Street, Suite 500
York, Pennsylvania 17401
(717) 225-4711

(Name, address, including zip code, and telephone number, including area code, of agent for service)

Copies to:

     Approximate date of commencement of proposed sale to the public: As soon as practicable after the effective date of this Registration Statement.

     If the only securities being registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box. o

     If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, other than securities offered only in connection with dividend or interest reinvestment plans, check the following box. o

     If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. x 333-117233

     If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. o

     If delivery of the prospectus is expected to be made pursuant to Rule 434, please check the following box. o

CALCULATION OF REGISTRATION FEE

THIS REGISTRATION STATEMENT SHALL BECOME EFFECTIVE UPON FILING WITH THE COMMISSION IN ACCORDANCE WITH RULE 462(b) UNDER THE SECURITIES ACT OF 1933.

Table of Contents

Explanatory Note

     This registration statement on Form S-3 is being filed pursuant to Rule 462(b) and General Instruction IV to Form S-3, both promulgated under the Securities Act of 1933, as amended, to register an additional 1,725,000 shares of common stock of P. H. Glatfelter Company. The contents of the registration statement on Form S-3 (Registration No. 333-117233), including the exhibits thereto, which registration statement was previously filed with the Securities and Exchange Commission and declared effective on September 21, 2004, are incorporated by reference into this registration statement.

SIGNATURES

     Pursuant to the requirements of the Securities Act, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of York, Commonwealth of Pennsylvania, on September 22, 2004.

     Pursuant to the requirements of the Securities Act, this registration statement has been signed by the following persons in the capacities and on the date indicated.

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