William Passmore

William Passmore may refer to:


 * William Passmore (boxer) (1915–1986), South African boxer and Olympic competitor
 * William J. Passmore (1933–2009), American jockey
 * William L. Passmore (1910–2002), American jockey and Thoroughbred trainer
 * William T. Passmore (1882–1955), American lacrosse player
 * Will Passmore, EastEnders character