The 1926–27 NHL season was the tenth season of the National Hockey League. The success of the Boston Bruins and the Pittsburgh Pirates led the NHL to expand further within the United States. The league added three new teams: the Chicago Black Hawks, Detroit Cougars and New York Rangers, to make a total of ten, split in two divisions. This resulted in teams based in Canada being in the minority for the first time. To stock the teams with players the new teams brought in players from the Western Hockey League, which folded in May 1926. This left the NHL in sole possession of hockey's top players, as well as sole control of hockey's top trophy, the Stanley Cup, which was won by the Ottawa Senators. This was the original Senators' eleventh and final Stanley Cup win. The Senators' first was in 1903.