| Tournament details | |
|---|---|
| Venue(s) | Halifax, Nova Scotia |
| Dates | May 1981 |
| Teams | 3 |
| Final positions | |
Champions  | Prince Albert Raiders (3rd title) |
Runner-up  | Belleville Bulls |
Third place  | Cole Harbour Colts |
| Tournament statistics | |
| Games played | 7 |
| Scoring leader(s) | Dave Tippett (Prince Albert) |
| MVP | James Patrick (Prince Albert) |
The 1981 Centennial Cup is the 11th Junior "A" 1981 ice hockey National Championship for the Canadian Junior A Hockey League.
The Centennial Cup was competed for by the winners of the Abbott Cup, Dudley Hewitt Cup, and the Callaghan Cup.
The tournament was hosted by the Cole Harbour Colts in the city of Halifax, Nova Scotia.