The 1976 U.S. Pro Indoor was a men's tennis tournament played on indoor carpet courts that was part of the WCT circuit. It was the 9th edition of the tournament and was played at the Wachovia Spectrum in Philadelphia, Pennsylvania in the United States from January 26 through February 1, 1976 . Jimmy Connors won the singles title.

Jimmy Connors defeated Björn Borg 7–6^(7–5), 6–4, 6–0

Rod Laver / Dennis Ralston defeated Bob Hewitt / Frew McMillan 7–6^(8–6), 7–6^(7–3)