William Slater

William, Bill, Billy or Willie Slater may refer to:

William Slater (architect) (1819–1872), English architect
William Slater (cricketer) (1790–1852), English cricketer
William Slater (swimmer) (born 1940), Canadian swimmer
William Slater (Tennessee politician), (born 1961), American politician from Tennessee
William A. Slater (1857–1919), American businessman, art collector, and philanthropist
Bill Slater (broadcaster) (1902–1965), American educator, sports announcer, and radio/television personality
Bill Slater (footballer) (1927–2018), English footballer
Bill Slater (politician) (1890–1960), Australian lawyer, politician and diplomat
Billy Slater (born 1983), Australian rugby league footballer
Billy Slater (footballer) (1858–?), English footballer
Willie J. Slater, American football coach and player
Edward Slater (1917–2016), also known as Bill Slater, Australian biochemist