Uncle Billy
- At Home in Mitford
- Barton Springs Pool
- Billy the Kid (1911 film)
- Career Woman
- Fables of the Green Forest
- It's a Wonderful Life
- Leave It to Beaver
- Pidgin Island
- Posse from Hell
- Slumber Party Massacre III
- The Littlest Rebel
- The Righteous Gemstones
- Turquoise Rose
- Uncle Billy Wilson
- Uncle Willy (disambiguation)
- William Carlos Stone
- William H. Spurgeon
- William Hicks (born 1817)
- William K. Martin
- William Tecumseh Sherman
- William Thomas Hamilton (frontiersman)