William Walton (1902–1983) was a British composer and conductor
William Walton may also refer to:
In sports William Walton (cricketer, born 1862) (1862–1925), English cricketer William Walton (cricketer, born 1799) (1799–1882), English cricketer William Walton (footballer) (1871–1929), English footballer William Walton (rugby) (1874–1940), rugby union and rugby league footballer who played in the 1890s and 1900s Bill Walton (1952–2024), American basketball player and sportscaster Billy Walton (1871–1963), English footballer Bill Walton (footballer) (1894–1953), Australian rules footballer who played with Collingwood in the Victorian Football League (VFL) Billy Walton (hurler) (1961–2012), Irish hurler Bill Walton (volleyball), American volleyball coach
In politics William Walton (bishop) (1716–1780), Vicar Apostolic of the Northern District of England William B. Walton (1871–1939), U.S. Representative from New Mexico William M. Walton (1832–1915), Attorney General of Texas William Walton (merchant) (1706–1768), American merchant and politician in New York William de Walton, MP for Lancashire
Other William Walton (painter) (1909/10–1994), American painter and chairman, U.S. Commission on Fine Arts William Walton (writer) (1784–1857), English author on Spain and Portugal William Walton (merchant) (1706–1768), American merchant and politician in New York William Lovelace Walton (1788–1865), British Army officer William Walton (1843–1915), writer and translator William R. Walton (1923–2001), geologist and researcher in the study of modern foraminifera