William Hayes
William Hayes may refer to:
- William B. Hayes (1844–1912), Mayor of Pittsburgh, Pennsylvania
- William Hayes (American football) (born 1985), American football player
- William Q. Hayes (born 1956), U.S. federal judge
- William Hayes (diver), Canadian Olympic diver
- William Hayes (geneticist) (1913–1994),Irish-born microbiologist and geneticist
- William Hayes (Irish politician), Irish Sinn Féin politician in the 1920s
- William Hayes (composer), (1708–1777), organist, conductor, writer
- William Hayes (photographer) of York
- Willie Hayes, Irish footballer
- Billy Hayes (writer) American writer
- William Hayes (wrestler)
- William Hayes (politician) former member of the Legislative Assembly of Alberta
See also