List of Famous people who are 73

Vicente "Tito" Castelo Sotto III is a Filipino politician and the incumbent Senate President of the Philippines. Following the 2016 elections, he is currently serving his fourth term in the Senate, having served two consecutive terms from 1992 to 2004; he was re-elected to the Senate in 2010. Prior to serving in the Senate, Sotto had served as the Vice Mayor of Quezon City from 1988 to 1992.

Cristina Banegas is an Argentine film, TV and stage actress. She has appeared in more than fifty films since 1965.

George Lawrence Mikan III is an American former professional basketball player.

Nathaniel "Nick" Rosen is an American cellist, the gold medalist of the 1978 International Tchaikovsky Competition, and former faculty member at the USC Thornton School of Music and the Manhattan School of Music.

Harvey Friedman is an American mathematical logician at Ohio State University in Columbus, Ohio. He has worked on reverse mathematics, a project intended to derive the axioms of mathematics from the theorems considered to be necessary. In recent years this has advanced to a study of Boolean relation theory, which attempts to justify large cardinal axioms by demonstrating their necessity for deriving certain propositions considered "concrete".