Don Winslow of the Navy was an American comic strip created by Frank Victor Martinek and distributed by the Bell Syndicate from 1934 to 1955. The title character was a spychasing Lieutenant Commander in Naval intelligence. The comic strip led to a radio adventure serial that began in 1937, as well as film serials that began in 1942. Original comics stories also appeared in Fawcett comic books starting in 1943.