William Patrick

William Patrick may refer to:
 * William Patrick (author), American author
 * William Patrick (minister) (1791–1872), minister of the Church of Scotland
 * William Patrick Sr. (1845–1936), Australian politician
 * William Patrick Jr. (1880–1968), Australian politician
 * William C. Patrick III (1926–2010), American biologist
 * William Penn Patrick (1930–1973), American entrepreneur and businessman
 * William S. Patrick (19th century), American politician, mayor of Flint, Michigan
 * William Patrick (diver) (1931–2016), Canadian diver
 * William Patrick (Canadian politician) (1810–1883), clergyman, merchant and political figure in Canada West