Tom·baugh 
(tŏmbô′), Clyde William 1906-1997.
(tŏmbô′), Clyde William 1906-1997. American astronomer who discovered Pluto (1930).
- William Schwenck
- William Seward
- William Seward
- William Smith
- W(illiam) Somerset
- Williamsport
- William Starke
- William Sydney
- William Tatem, Jr.
- William Tecumseh
- "William the Conqueror."
- William the Conqueror
- "William the Silent."
- William Thomas Green
- William Thomson.
- William Trevor Cox.
- William Turner
- William Vacanarat Shadrach
- (William) Wilkie
- William Worrall
- Willie
- willie
- Willie Howard, Jr.
- Willie Pete
- willies