Thomas "Moose" Dewar (June 10, 1913 – July 23, 1982) was a Canadian ice hockey defenceman.

He played 9 games in the National Hockey League (NHL) for the New York Rangers during the 1943–44 season.

The rest of his career, which lasted from 1934 to 1944, was spent in the minor leagues.

Dewar was a member of the Saskatoon Quakers who represented Canada at the 1934 World Championships held in Milan, Italy where they won gold.

This biographical article relating to a Canadian ice hockey defenceman born in the 1910s is a stub.