John Bannon (1943–2015) was an Australian politician, academic, and premier of South Australia. John Bannon or Jack Bannon may also refer to: John B. Bannon (1829–1913), Irish Catholic chaplain and Confederate agent to Europe during the American Civil War John Francis Bannon (1905–1986), Jesuit and American West historian John Bannon (referee), Gaelic football referee Jack Bannon (American actor) (John James Bannon, 1940–2017) Jack Bannon (English actor) (born 1991)