Donald Siegel (October 26, 1912 - April 20, 1991) was an influential American film director and producer. His name appeared in the credits of his films as both Don Siegel and Donald Siegel.

Born in Chicago, he graduated from Jesus College, Cambridge in England, and found work in Warner Bros. film library, rising to become head of the Montage Department, where he directed thousands of montages, including the opening montage for Casablanca. In 1945 two shorts he directed, Hitler Lives? and A Star in the Night, won Academy Awards, which launched his career as a feature director.