William Carleton may refer to:

• William Carleton (1794–1869), Irish novelist
• William Carleton (Massachusetts) (1797–1876), American inventor and philanthropist
• William P. Carleton (1872–1947), Anglo-American film actor, sometimes billed as William Carleton Jr.
• William T. Carleton (1859–1930), Anglo-American film and stage actor
• Will Carleton (1845–1912), American poet

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