John James "Jolly Jack" Adams was a Canadian professional ice hockey player, coach and general manager in the National Hockey League and Pacific Coast Hockey Association. He played for the Toronto Arenas, Vancouver Millionaires, Toronto St. Patricks and Ottawa Senators between 1917 and 1927. He won the Stanley Cup twice as a player, with Toronto in 1918 and Ottawa in 1927, and was inducted into the Hockey Hall of Fame.

The Toronto Arenas or Torontos were a professional men's ice hockey team that played in the first two seasons of the National Hockey League (NHL). It was operated by the owner of the Arena Gardens, the Toronto Arena Company. As the ownership of the National Hockey Association (NHA) Toronto Blueshirts franchise was in dispute, the new NHL league was started, and a temporary Toronto franchise was operated. The NHL itself was intended to only be a one-year entity until the NHA could be reactivated, although it never was.