William Bainbridge (1774–1833) was a commodore in the U.S. Navy.
William Bainbridge may also refer to:
Bill Bainbridge (1922–1966), English footballer William G. Bainbridge (1925–2008), U.S. Army Sergeant Major of the Army William Sims Bainbridge (born 1940), American sociologist William Seaman Bainbridge (1870–1947), American surgeon and gynecologist William Bainbridge (lawyer) (1811–1869) British lawyer and writer associated with Newcastle upon Tyne William Bainbridge (MP) (died 1583), MP for Derby See also William Bainbridge Castle (1814–1872), American politician, mayor of Cleveland, Ohio William Bambridge (1820–1879), missionary in Waimate, New Zealand and photographer to Queen Victoria USS Bainbridge, several ships named after the US commodore