John Kirwan may refer to: John Óge Kirwan (fl. 1530–1531), mayor of Galway Sir John Kirwan (1650–1721), Irish entrepreneur John Kirwan (cricketer) (1816–1899), English cricketer John Kirwan (politician) (1869–1949), Australian politician John William Kirwan (died 1849), president of Queen's College, Galway Jack Kirwan (John Henry Kirwan) (1878–1959), Irish international football player who played for Everton, Tottenham and Chelsea Jack Kirwan (rugby league) (1896–1968), New Zealand rugby league player Sir John Kirwan (rugby) (born 1964), New Zealand rugby player and coach, and mental health advocate