John McCormack may refer to:
John McCormack (tenor) (1884–1945), Irish tenorJohn Brendan McCormack (born 1935), Catholic bishop of the Diocese of Manchester, New HampshireJohn William McCormack (1891–1980), politician from Massachusetts, Speaker of the House of Representatives, 1962–1971John McCormack (Ohio politician) (born 1940s), former member of the Ohio House of RepresentativesJohn McCormack (boxer) (1935–2014), Scottish boxerYoung McCormack (born 1944), Irish boxer born John McCormackJohn McCormack (baseball), American college baseball coachJohn McCormack (Irish footballer) (fl. 1970s–1980s), Irish soccer playerJohn McCormack (footballer, born 1955), Scottish football player and managerJohn McCormack (footballer, born 1965), Scottish football playerJohn McCormack (ice hockey) (1925–2017), Canadian ice hockey playerJohn McCormack (racing driver), Australian racerJohn Edward McCormack (1917–1953), lawyer and political figure in SaskatchewanJohn MacCormac, Irish timber merchantCec McCormack (John Cecil McCormack, 1922–1995), English footballer
