William McCormack (disambiguation)

William McCormack was Premier of Queensland.

William McCormack is also the name of:


 * William J. McCormack (1933–2016), Chief of Police of the Metro Toronto Police
 * William Jerome McCormack (1924–2013), American Prelate of Roman Catholic Church
 * William J. McCormack (businessman) (1890–1965), New York City businessman
 * William McCormack (cricketer) (1877–1946), Australian cricketer
 * John William McCormack (1891–1980), Speaker of the United States House of Representatives