William Waller may refer to:
Sir William Waller (c. 1597–1668), English Parliamentary general during the English Civil War Sir William Waller (informer) (died 1699), Middlesex justice and politician William Waller (cricketer) (1923-1998), Trinidadian cricketer William Waller (footballer) (1898–?), English footballer W. H. Waller, mayor of Ottawa in 1877 Bill Waller (1926–2011), American politician, governor of Mississippi, 1972–1976 Bill Waller (American football) (1911–2007), head football coach for the Southern Illinois Salukis Bill Waller Jr. (born 1952), former chief justice of the Supreme Court of Mississippi and candidate for governor in 2019