April 30, 2021
Securities
and Exchange Commission
Office of Filings and Information Services
100 F Street, NE
Washington,
DC 20549
RE: BNY Mellon Stock Index Fund, Inc.
1933
Act File No.: 33-27172
1940 Act File No.: 811-05719
CIK No.: 0000846800
Ladies and Gentlemen:
Pursuant to Rule 497(j) under the Securities Act of 1933, this is to certify that the form of the Prospectus and Statement of Additional Information that would have been filed under paragraph (b) or (c) of this section does not differ from that contained in the most recent amendment, Post-Effective Amendment No. 49 to the Registration Statement, electronically filed with the Securities and Exchange Commission on April 14, 2021.
Please address any comments or questions to my attention at 412-234-2722.
Sincerely,
/s/ Lori Close
Lori Close
Analyst/Paralegal