William Irwin or Bill Irwin may refer to:

• Bill Irwin (wrestler) (born 1954), American professional wrestler
• Bill Irwin (born 1950), American actor and clown
• Bill Irwin (footballer) (born 1951), Northern Irish ex-footballer
• Billy Irwin (Australian rules footballer) (1884–1946), Australian footballer
• Bill Irwin (priest) (1928–2004), Canadian priest
• Bill Irwin (baseball) (1859–1933), baseball player
• Bill Irwin (skier) (1920–2013), former Canadian skier
• Will Irwin (1873–1948), American author
• William Irwin (California politician) (1827–1886), California politician from the Democratic Party
• William Andrew Irwin (1884–1967), theologian
• William Arthur Irwin (1898–1999), Canadian journalist and diplomat
• William C. K. Irwin (1907–1998), a.k.a. Will Irwin, American pianist, conductor, and songwriter
• William Irwin (philosopher) (born 1970), professor of philosophy at King's College in Wilkes-Barre, Pennsylvania
• William Irwin (boxer) (born 1968), Canadian boxer
• William Irwin (Unionist politician) (born 1956), Unionist politician in Northern Ireland
• William W. Irwin (1803–1856), Mayor of Pittsburgh
• William W. Irvin or Irwin (1778–1842), Ohio politician
• William Roy Irwin (1898–1969), Canadian-born World War I flying ace

• Bill Erwin (1914-2010) American character actor
• William Irvin (disambiguation)
• William Irvine (disambiguation)
• William Irving (disambiguation)
• William Irwin Thompson (born 1938), social philosopher, cultural critic and poet
• Irwin (surname)

Topics referred to by the same term

This disambiguation page lists articles about people with the same name.
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