Thomas "Moose" Dewar (born June 10, 1913 in Frobisher, Saskatchewan) was a Canadian ice hockey defenceman. He played in the NHL for the New York Rangers.
He played junior hockey for the Moose Jaw Cubs from 1929 to 1934. After that he played senior hockey in Western Canada until 1943. For one season (1936-37) he played in Europe for the Earls Court Rangers.
In 1943-44 he was the player-coach of the Brooklyn Crescents. He also made his NHL debut that year, scoring 2 assists in 9 games.
He retired in 1944.