Martin Blank may refer to:
Martin Blank (artist) (born 1962), American glass artist Martin Blank (politician) (1897–1972), German politician Martin Blank (playwright), American playwright, screenwriter, and theatrical producer Martin Blank (Grosse Pointe Blank), lead character in the film Grosse Pointe Blank Martin Blank (Marvel Comics), the alter ego of the Marvel Comics character known as Gibbon