Duke of the Navy is a 1942 comedy film that was directed by William Beaudine from a screenplay by Beaudine, Gerald Drayson Adams, and John T. Coyle. It stars Ralph Byrd as Bill "Breezy" Duke, Stubby Kruger as Dan "Cookie" Cook, and Veda Ann Borg as Maureen.

The film centers on sailors Breezy, who disguises himself as heir to a company fortune, and his friend Cookie, as they become part of a sophisticated con scheme. Produced and distributed by independent film company Producers Releasing Corporation and released on January 23, 1942, it has received generally negative reviews from critics and authors.