This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. Please help improve this article by introducing more precise citations. (June 2021) (Learn how and when to remove this message)

The Northern Senior A Hockey League was an Ontario Hockey Association-sanctioned senior loop in Southwestern Ontario. Its champions could compete for the Hardy Cup in the 1980s and briefly for the Allan Cup in the 1990s.

The league originated as the OHA Intermediate C Hockey League in the 1970s, became the Northern Intermediate B Hockey League in the 1980s and merged with the Central Senior B Hockey League in the late 1980s, before folding due to lack of interest in 1993. In 1986–87, the league, with a few other local teams turned into the Georgian Bay Senior A and Georgian Bay Senior B Leagues - this lasted for one season. Two teams from this league, the Elora Rocks and Shelburne Muskies, still actively exist in the WOAA Senior AA Hockey League.

• Camp Borden
• Creemore Chiefs (-1993)
• Dundalk Flyers (Sr. B 1986–1987)
• Durham Huskies (1983–1987, 1988–1992)
• Elora Rocks (-1993)
• Grand Valley Tornados
• Honeywood Cougars
• Kincardine Texacos
• Lakeshore Winterhawks (1989–1993)
• Markdale Majors (Sr. B 1986–1987)
• Owen Sound Canadians/Woodford Royals (1986–1990)
• Port Elgin Sunocos
• Shelburne Muskies (-1993)
• Thornbury (Sr. B 1986–1987)

• 1984 Durham Huskies
• 1985 Durham Huskies
• 1986 Durham Huskies
• 1987 Collingwood Shipbuilders (Georgian Sr. A)

??? (Georgian Sr. B)

• 1988
• 1989 Creemore Chiefs
• 1990 Creemore Chiefs
• 1991 Creemore Chiefs
• 1992 Elora Rocks
• 1993 Elora Rocks

• 1985 Durham Huskies (OHA Intermediate B J.F. Paxton Cup Champions)
• 1987 Durham Huskies (Ontario Senior AA J. Ross Robertson Cup Champions)
• 1987 Collingwood Shipbuilders (OHA Senior A J.F. Paxton Cup Champions)
• 1989 Durham Huskies (OHA Senior AA J. Ross Robertson Cup Champions)
• 1989 Durham Huskies (Ontario/Quebec Senior AA Champions)
• 1992 Creemore Chiefs (OHA Senior B Ken MacMillan Cup Champions)

• Durham Huskies
• Elora Rocks
• Exeter Mohawks
• Harriston Blues
• Hillsburgh Royals
• New Hamburg Panthers
• Palmerston 81's
• Tavistock Royals

• 1986
• 1987
• 1988 Exeter Mohawks
• 1989 Exeter Mohawks

• 1988 Exeter Mohawks (OHA Senior AA J. Ross Robertson Cup Champions)
• 1989 Exeter Mohawks (OHA Senior B Ken MacMillan Cup Champions)

• OHA Website