William Castle

William Castle is the name of the following people:

• William Castle (Director) (1914–1977), American director, producer, and actor
• William B. Castle ( William Bainbridge Castle ; 1814–1872), American politician (Ohio)
• William Bosworth Castle (1897–1990), American physician and physiologist
• William Ernest Castle (1867–1962), American geneticist

This is a disambiguation page for differentiating between several terms identified with the same word.