William Smyth (disambiguation)
William Smyth (c. 1460–1514) was an English bishop.
William Smyth may also refer to:
- William Smyth (academic administrator) (died 1658), English academic administrator at the University of Oxford
- William Smyth (architect) (died 1490), English Gothic architect
- William Smyth (congressman) (1824–1870), American politician
- William Smyth (Australian politician) for Electoral district of Gympie
- William Smyth (Irish politician), UK MP for the Irish constituency of Westmeath, 1801–1808
- William Smyth (professor) (1797–1868), American mathematician
- William Henry Smyth (1788–1865), British astronomer and admiral
- William Ross Smyth (1857–1932), Canadian politician
- William Smyth (historian) (1765–1849), English historian
- Bill Smyth (1916–2007), Australian cricketer
- Bill Smyth (broadcaster) (1936–2011), broadcaster and sports journalist in Northern Ireland
See also
- William Smythe (disambiguation)
- William Smith (disambiguation)