William Thomas
William Thomas is the name of the following people:
- William Thomas (knight) († 1542), Welsh knight
- William Thomas (Scholar) († 1554), English scholar and participant in the Wyatt conspiracy
- William Thomas (politician) (1551–1586) Welsh nobleman, politician, and military man
- William Thomas (Bishop) († 1689), Bishop of St Davids and Worcester
- William Thomas (Protector) (1793–1867), British protector of the Aborigines
- William Thomas (poet) (1832–1878), Welsh poet
- William Thomas (actor) , Welsh actor
- William Thomas ( American football player ) (* 1968), American football player
- William C. Thomas (1903–1984), American film producer, director and writer
- William D. Thomas (1880–1936), American politician (New York)
- William F. Thomas (1924–2014), American editor
- William Holland Thomas (1805-1893), Cherokee tribal leader and Southern Colonel during the War of Civilizations
- William Isaac Thomas (1863–1947), American sociologist
- William King Thomas (1827–1875), Canadian assassin
- William W. Thomas Jr. (1839–1927), American diplomat
