|Olympic medal record|
|Men's Ice hockey|
|Gold||1924 Chamonix||Team Competition|
- This article is about the amateur hockey player from the 1910s and 1920s; for the professional hockey player from the 1940s and 1950s, see Harry Watson (b. 1923).
Born in St. John's, Newfoundland and Labrador, Watson also lived in England and Winnipeg, Manitoba before moving to Toronto at the age of 15. He played for Whitby in the Ontario Hockey Association. He then played for St Andrews College and was a first team all-star in 1915. Watson played for the Toronto Aura Lee before serving in the Canadian military during World War I.
After the war, Watson joined the Toronto Dentals in a playoff series against the Hamilton Tigers, which the Tigers won. For the 1919-20 season, he joined the new Toronto Granites, the OHA team from the Toronto Granite Club. Led by Watson, the Granites won the Allan Cup in 1921-22 and 1922–23, with Watson named a first-team all-star in both seasons. They then represented Canada at the 1924 Winter Olympics, winning the ice hockey gold medal. At the Olympics, Watson scored 37 goals in five games as the Canadian team outscored the opposition 132-3 over six games.
He turned down several lucrative offers to play professionally in the National Hockey League. Charlie Querrie, manager of the Toronto St. Patricks, offered Watson $10,000 to join his team for the 1924-25 season, but Watson declined. 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.
In 1930, he became coach of the Toronto National Sea Fleas senior amateur team. During the 1931 playoff season, Watson refereed several OHA games. In December 1931, during his second season behind the bench for the Sea Fleas, Watson made a brief comeback as a player at the age of 33 after one of his players was unable to make a road trip. As coach, Watson guided the team to the Allan Cup in 1932.