Monsignor Joseph Thomas Arthur Maheux, SM, OBE, FRSC (22 June 1884 – 30 August 1967) was a Canadian priest and historian. He was a leading proponent of Canadian unity as well as a trenchant critic of Quebec society. He was President of the Société du parler français au Canada from 1924 to 1925 and President of the Canadian Historical Association from 1948 to 1949.