Morley Callander "Rat" Bruce (March 7, 1894 – November 25, 1959[1]) was a Canadian professional ice hockey defenceman who played for four seasons in the National Hockey League for the Ottawa Senators between 1917 and 1922.

In 1917, he signed his first professional contract with the Ottawa Senators for the 1917–18 season.

After the season, Bruce served for a year in the armed forces.

Bruce died in Ottawa in 1959 and is interred in Norway Bay, Quebec.

[1] Ida Hughes outlived Bruce, living until 1996 when she died at the age of 98.