William Foster

William Foster is the name of the following people:

• William Foster (historian) (1863–1951), British historian
• William Foster (swimmer) , British swimmer
• William C. Foster ( Billy Foster ; 1880–1923), American cinematographer
• William Harnden Foster (1886–1941), American painter, writer, filmmaker, and journalist
• William P. Foster (1919–2010), American musician, band leader and music teacher
• William Wasbrough Foster ( Billy Foster ; 1875–1954), British-Canadian mountaineer, politician, military and police officer
• William Z. Foster (1881–1961), American politician

This is a disambiguation page for differentiating between several terms identified with the same word.