Keith Prentice was an American TV, film and stage actor, whose most famous role was the part of Larry in both the original stage and film versions of The Boys in the Band. Prentice also appeared on the TV soap Dark Shadows during the series' final months in 1971. For a number of years, his picture was displayed on the Tasters Choice coffee label.

In 1982, Keith Prentice co-founded Kettering Theatre Under the Stars, and directed summer shows there until the year of his death.

Prentice died of AIDS-related cancer on September 27, 1992, in Kettering, Ohio.