William Smyth (c. 1460–1514) was an English bishop.
William Smyth may also refer to:
Politics Sir William Smyth, 1st Baronet (c.1616–1696), English politician William Smyth (Irish politician), UK MP for the Irish constituency of Westmeath, 1801–1808 William Smyth (congressman) (1824–1870), American politician William Smyth (Australian politician) (1846–1899), Australian politician for electoral district of Gympie William Ross Smyth (1857–1932), Canadian politician William James Smyth (1886–1950), labour member of the Senate of Northern Ireland
Sports William Smyth (rugby union) (1886–1937), Irish international rugby union player Bill Smyth (umpire) (1916–2007), Australian cricket umpire Billy Smyth (1925–2005), Northern Irish footballer Bill Smyth (American football) (1922–1966), American football player
Religion William Edmund Smyth (1858–1950), Anglican bishop in England and South Africa William Smyth (Irish bishop) (1642–1705), Anglican bishop in Ireland William Blood Smyth, archdeacon of Killaloe, 1927–1938 William Smyth (priest, born 1683) (1683–1759), dean of Ardfert and archdeacon of Meath William Smyth (priest, born 1662) (1662-1710), Irish Anglican priest, archdeacon of Connor Sir William Smyth, 6th Baronet (c. 1719–1777), English landowner and clergyman
Other William Smyth (architect) (died 1490), English Gothic architect William Smyth (academic administrator) (1582–1658), English academic administrator at the University of Oxford William Smyth (historian) (1765–1849), English historian William Henry Smyth (1788–1865), British astronomer and admiral William Smyth (professor) (1797–1868), American mathematician
See also William Smythe (disambiguation) William Smith (disambiguation)