 | |
| Tournament details | |
|---|---|
| Venue(s) | Summerside, Prince Edward Island |
| Dates | May 1989 |
| Teams | 4 |
| Final positions | |
Champions  | Thunder Bay Flyers (1st title) |
Runner-up  | Summerside Western Capitals |
Third place  | Moncton Hawks |
| Fourth place | Vernon Lakers |
| Tournament statistics | |
| Games played | 8 |
| Scoring leader(s) | Greg Johnson (Thunder Bay) |
| MVP | Todd Hendersen (Thunder Bay) |
The 1989 Centennial Cup is the 19th Junior "A" 1989 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, the Callaghan Cup, and a host city.
The tournament was hosted by the Summerside Western Capitals in the city of Summerside, Prince Edward Island.