The 1988 Callaghan Cup determined the Atlantic Canada seed to the 1988 Centennial Cup.
Teams[]
- IJHL - Summerside Western Capitals
- MVJHL - Halifax Lions
- New Brunswick - Richibucto Voyageurs
Playdowns[]
Atlantic Final
- Summerside Western Capitals defeated Richibucto Voyageurs 4-games-to-none
- Summerside 4 - Richibucto 1
- Summerside 7 - Richibucto 2
- Summerside 10 - Richibucto 5
- Summerside 5 - Richibucto 2
Final
- Halifax Lions defeated Summerside Western Capitals 4-games-to-3
- Summerside 6 - Halifax 3
- Halifax 8 - Summerside 6
- Halifax 7 - Summerside 5
- Summerside 5 - Halifax 3
- Summerside 8 - Halifax 2
- Halifax 6 - Summerside 3
- Halifax 6 - Summerside 3