John O'Loughlin may refer to: John O'Loughlin (dual player) (born 1989), Irish Gaelic footballer and hurler from County Laois John Patrick O'Loughlin (1911–1985), bishop of the Roman Catholic Diocese of Darwin Jack O'Loughlin (Australian footballer) (John Joseph O'Loughlin; 1873–1960), Australian rules footballer
See also John Loughlin (disambiguation)