The 1974 U.S. Professional Indoor was a men's tennis tournament that was part of the WCT circuit and played on indoor carpet courts at the Spectrum in Philadelphia, Pennsylvania in the United States.

It was the seventh edition of the tournament and was held from January 21 through January 27, 1974.

Sixth-seeded Rod Laver won the singles title, his fourth at the event after 1969, 1970 and 1972.

[3] Rod Laver defeated Arthur Ashe 6–1, 6–4, 3–6, 6–4 [1] Pat Cramer / Mike Estep defeated Jean-Baptiste Chanfreau / Georges Goven 6–1, 6–1 [2]