Several teams have been named the Ottawa Senators throughout history:
- Ottawa Senators, the current National Hockey League team (1992-present);
- Ottawa Senators (original), the original NHL Senators (1883-1954);
- Ottawa Senators (CWHL), a team of the Canadian Women's Hockey League;
- Ottawa Jr. Senators, a junior team founded in 1980;
- Ottawa Senators (senior), a senior amateur/semi-pro team, in itself a resurection of the original Senators (1934-1954);
- Ottawa Senators (FHL), a pro team that played in the Federal Hockey League in 1908-09.