King of Alcatraz is a 1938 American drama film directed by Robert Florey and starring Gail Patrick, Lloyd Nolan and Harry Carey.

[2] Just as gangster Steve Murkil is escaping from Alcatraz prison, rival San Francisco radio operators Ray Grayson and Bob MacArthur find themselves assigned to a freighter run by Captain Glennan, headed out to sea.

Among those on board are a new nurse, Dale Borden, and passengers including a young woman and her mother.

A fight results in Ray being wounded, with Dale receiving radio instructions on how to perform an operation that he immediately needs.

New York Times critic Frank Nugent called the film "a trim little melodrama, tightly written and logically contrived.