The 1990 Callaghan Cup was a series of playoff rounds to determine the Atlantic Canada seed to the 1990 Centennial Cup.
Teams[]
Playdowns[]
Semi-final
- Charlottetown Abbies defeated Avalon Jr. Capitals 4-games-to-none
- Charlottetown 8 - Avalon 1
- Charlottetown 3 - Avalon 1
- Charlottetown 5 - Avalon 2
- Charlottetown 10 - Avalon 1
Final
- Amherst Ramblers defeated Charlottetown Abbies 4-games-to-1
- Amherst 6 - Charlottetown 5 OT
- Amherst 6 - Charlottetown 5 OT
- Charlottetown 6 - Amherst 5
- Amherst 8 - Charlottetown 0
- Amherst 4 - Charlottetown 3