William Kirk

William Kirk may refer to:


 * William Arthur Kirk, American mathematician
 * William Astor Kirk, (1922–2011), American civil rights activist and author
 * William F. Kirk, (1877–1927), American baseball writer and poet
 * Billy Kirk, rugby league footballer of the 1930s for England, and Warrington
 * William Kirk (cricketer), (1866–1904), English cricketer
 * William L. Kirk, (1932–2017), American air force officer
 * William Umpleby Kirk, (1843–1928), photographer
 * Bill Kirk (1934–2009), American baseball player
 * William Kirk (MP), (1795–1870), Member of the UK Parliament for Newry
 * William Kirke, MP for Clitheroe
 * Will Kirk, Furniture restorer The Repair Shop