William Dunlop

William Dunlop may refer to:

• William Dunlop (ecclesiastical historian) (1692–1720), British professor of church history at the University of Edinburgh
• William Dunlop (motorcycle racer) (1985–2018), British motorcycle racer
• William Dunlop (principal) (1654–1700), Covenanter and principal of Glasgow University
• William James Dunlop (1881–1960), Ontario MPP and cabinet minister
• William "Tiger" Dunlop (1792–1848), Member of Parliament for United Province of Canada and Warden of the Forests, Canada Company
• William Patterson Dunlop (1951–2009), Canadian actor
• William Vincent "Billy" Dunlop, convicted murderer who was the first person to be convicted under the new UK double jeopardy laws