Bill Farmer (born 1952) is an American voice actor and comedian.
Bill, Billy, or William Farmer may also refer to:
Bill Farmer (public servant) (born 1947), an Australian public servant and policymaker Bill Farmer (baseball) (1864–1928), a professional baseball player William M. Farmer (1853–1931), an American jurist and politician William R. Farmer (1929–2000), an American professor of theology William Wood Farmer (1813–1854), lieutenant governor of Louisiana from 1853–1854 William Farmer (runner), a participant in the 2009 Laugavegur Ultramarathon Billy Farmer, a character in the comic The Leopard from Lime Street