Harry John Sterling was a Canadian ice hockey administrator. He was elected president of the Canadian Amateur Hockey Association (CAHA) in 1920, after serving as an Ontario Hockey Association executive and as president of the Thunder Bay Amateur Hockey Association. He declared that the CAHA would not tolerate the hockey "tourist" after becoming suspicious of players who changed their addresses to be on a new team. His investigation into registrations led to the suspension of a team from Saskatoon when it was discovered that players who won the gold medal representing Canada in ice hockey at the 1920 Summer Olympics were being paid for amateur hockey. His term as president resulted in the CAHA enacting stricter rules for registration and co-operation with the Amateur Athletic Union of Canada to investigate into all Canadian hockey players to maintain amateurism.

The Canadian Amateur Hockey Association was the national governing body of amateur ice hockey in Canada from 1914 until 1994, when it merged with Hockey Canada. Its jurisdiction included senior ice hockey leagues and the Allan Cup, junior ice hockey leagues and the Memorial Cup, amateur minor ice hockey leagues in Canada, and choosing the representative of the Canada men's national ice hockey team.