Harold Ellis "Moose" Watson (July 14, 1898 — September 11, 1957) was a Canadian amateur ice hockey player.

He was a member of the Toronto Granites team that won a gold medal for Canada in ice hockey at the 1924 Winter Olympics.

Born in St. John's, Newfoundland, Watson also lived in England and Winnipeg, Manitoba before moving to Toronto at the age of 15.

[3] He flew a Royal Aircraft Factory SE.5a to victory over an Albatros D.V on 25 January 1918, sharing the win with fellow Canadian Frank H. Taylor.

His Granites teammate Hooley Smith would have a 17-year NHL career, but Watson wanted to enter the business world and retired as a player in 1924.