Frank Cady (September 8, 1915 – June 8, 2012) was an American actor. His most famous role was general-store owner Sam Drucker, one of the less-nutty residents of Hooterville in both Green Acres (1965) and Petticoat Junction (1963). He had a history as a film, stage, and television actor long before those shows, and also appeared on some radio programs including Gunsmoke.

In the 1950s, Cady played Doc Williams in The Adventures of Ozzie and Harriet (1952), along with numerous supporting parts in movies and also appeared in television commercials for (among other products) Shasta Grape Soda. Cady has been most prolific in television and was the only actor to play a recurring character on three TV sitcoms at the same time, The Beverly Hillbillies (1962), Green Acres (1965), and Petticoat Junction (1963). Usually cast as a gregarious small-town businessman, druggist, store clerk or other type of all-around Midwestern-type good guy, Cady was actually a California native, born in Susanville in 1915.