Junior B
Junior B may refer to:
- Junior ice hockey leagues in Canada:
- Calgary Junior Hockey League
- Capital Junior Hockey League, in Alberta
- Capitale Junior AA Hockey League, in Quebec
- Central Junior B Hockey League of the Ontario Junior Hockey League
- Chaudiere-Appalaches Junior AA Hockey League, in Quebec
- Eastern Ontario Junior Hockey League
- Estrie-Mauricie Junior AA Hockey League, in Quebec
- Greater Ontario Junior Hockey League
- Heritage Junior B Hockey League in Alberta
- Island Junior Hockey League, in Prince Edward Island
- Keystone Junior Hockey League, in Manitoba
- Kootenay International Junior Hockey League, in British Columbia
- Laurentides-Lanaudière Junior AA Hockey League, in Quebec
- Ligue de Hockey Junior AA Lac St-Louis, in Quebec
- Ligue de Hockey Junior AA Saguenay-Lac-St-Jean, in Quebec
- Métropolitaine Junior AA Hockey League, in Quebec
- New Brunswick Junior B Hockey League
- North Eastern Alberta Junior B Hockey League
- North West Junior Hockey League, in Alberta and British Columbia
- Nova Scotia Junior B Hockey League of the Nova Scotia Junior Hockey League
- Pacific Junior Hockey League, in British Columbia
- Prairie Junior Hockey League, in Saskatchewan
- St. John's Junior Hockey League, in Newfoundland and Labrador
- Thunder Bay Junior B Hockey League
- Vancouver Island Junior Hockey League, in British Columbia
- Western Junior B of the Western Ontario Hockey League
- Defunct junior ice hockey leagues in Canada
- Border Cities Junior B Hockey League, a hockey league that operated in Ontario from 1958 to 1964
- Eastern Junior B Hockey League, a hockey league in eastern Ontario
- Golden Horseshoe Junior B of the Golden Horseshoe Junior Hockey League
- International Junior B Hockey League, which operated in northern Ontario and northern Michigan in the United States
- Metro Junior B Hockey League, predecessor of the Metro Junior A Hockey League
- Mid-Ontario Junior B Hockey League in southern Ontario
- Mid-Western Junior Hockey League, previously known as the Southwestern Junior B Hockey League (1973–1974) and the Waterloo-Wellington Junior B Hockey League 1974–1977
- Niagara District Junior B Hockey League, that operated from 1956 to 1979
- North of Superior Junior B Hockey League
- North Saskatchewan Junior B Hockey League
- Western Junior B Hockey League; see Western Ontario Hockey League
- Ontario Junior B Lacrosse League
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