Peter McCormack may refer to:
Peter McCormack (footballer) (born 1956), Australian rules footballer Peter McCormack (handballer) (1923–2008), Gaelic handball player Peter M. McCormack (1919–1988), member of the Massachusetts Senate Pete McCormack (born 1965), Canadian author, filmmaker, and musician
See also Peter McCormick, English lawyer. Peter Dodds McCormick, Australian composer