William Walker
Several notables have been named William Walker:
- William Walker (soldier), U.S. Soldier and Pirate who tried to conquer Central America. Briefly ruled Nicaragua.
- William Walker (composer), composer in the shape note tradition, author of Southern Harmony
- William Walker (missionary) (1808-1896), missionary in Gabon
- William Walker (assistant), assistant to George Eastman
- William Walker (diplomat), US diplomat, ambasador to El Salvador, leader of the Kosovo Verification Mission
- William Walker (diver), the diver who saved Winchester Cathedral from collapse
- William Walker (main character in S.M. Stirling's Island in the Sea of Time series)
- William Walker (US actor), African-American actor, famous for appearing in To Kill a Mockingbird (1962).