William Wynn
William, Will, Willie, or Bill Wynn or Wynne may refer to:
Law and politics
- William Wynne (lawyer), Welsh lawyer and historian
- William Wynne (judge), English judge and academic
- William Wynne (Irish politician), Irish politician, MP for Sligo Borough
- William Watkin [Edward Wynne], Welsh politician, MP for Merionethshire
- William J. Wynn, US Representative from California
- William Robert Maurice Wynne, Welsh politician, MP for Merionethshire
- Will Wynn, American politician in Austin, Texas
Sports
- Bill Wynne, American baseball pitcher
- William Wynn (footballer), Welsh international footballer
- Willie Wynn, American baseball player
- Will Wynn (American football), American football defensive end
- William Wynne (athlete), American hurdler
Others
- William Wynne (historian), Welsh priest and historian
- William Wynn (poet), Welsh priest and poet
- Bill Wynne, American dog trainer and photojournalist
- William H. Wynn, American trade unionist
Other uses
- Williams-Wynn baronets, English baronetcy