John O'Loughlin

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