Hazel Flagg is a 1953 musical, book by Ben Hecht, based on a story by James H. Street. The lyrics are by Bob Hilliard, and music by Jule Styne. The musical is based on the 1937 screwball comedy film Nothing Sacred, the primary screenwriter of which was Ben Hecht.

Jule Styne was an English-American songwriter and composer widely known for a series of Broadway musicals, including several famous frequently-revived shows that also became successful films: Gypsy, Gentlemen Prefer Blondes, and Funny Girl.