William Donnelly
William Donnelly or Willie Donnelly may refer to:
- William Earnest Donnelly, New Zealand schoolteacher
- William J. S. Donnelly, Newfoundland politician
- William M. Donnelly, American politician in Michigan
- William Donnelly, member of the Black Donnellys
- Willie Donnelly (footballer), Irish footballer
- Willie Donnelly (hurler), Irish hurler
- William Donnelly, Scottish artist and archaeologist
Fictional
- Will Donnelly, character on television series ''Love Is a Many Splendored Thing''