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 (character), Gibbon.
{{hndis, Blank, Martin