| Tourney Name: | Manitoba Centennial Cup |
| Year: | 1984 |
| Size: | 140px |
| Dates: | May 1984 |
| Num Teams: | 2 |
| Venues: | Weyburn, Saskatchewan |
| Type: | other |
| Winners: | Weyburn Red Wings |
| Count: | 1 |
| Second: | Orillia Travelways |
| Games: | 7 |
| Mvp: | Ron Amyotte (Weyburn) |
| Prevseason: | 1983 |
| Nextseason: | 1985 |
The 1984 Centennial Cup is the 14th Junior "A" 1984 ice hockey National Championship for the Canadian Junior A Hockey League.
The Centennial Cup was competed for by the winners of the Abbott Cup/Western Canadian Champions and the Eastern Canadian Jr. A Champions. The Maritimes champions did not compete for the Eastern championship.
The finals were hosted by the Weyburn Red Wings in the city of Weyburn, Saskatchewan.
Prior to the Regionals
Langley Eagles (BCJHL) defeated Prince George Spruce Kings (PCJHL) 2-games-to-none
Selkirk Steelers (MJHL) defeated Flin Flon Bombers (NMJHL) 4-games-to-1
| Game | Team | Score | Team | Score | Notes | |
|---|---|---|---|---|---|---|
| 1 | Weyburn Red Wings | 5 | Orillia Travelways | 6 | Final | |
| 2 | Weyburn Red Wings | 6 | Orillia Travelways | 4 | Final | |
| 3 | Weyburn Red Wings | 7 | Orillia Travelways | 4 | Final | |
| 4 | Weyburn Red Wings | 1 | Orillia Travelways | 2 | Final | |
| 5 | Weyburn Red Wings | 5 | Orillia Travelways | 8 | Final | |
| 6 | Weyburn Red Wings | 5 | Orillia Travelways | 4 | Final | |
| 7 | Weyburn Red Wings | 3 | Orillia Travelways | 0 | Final |
Eastern Champions: Orillia Terriers
Western Capitals
Halifax Lions
Most Valuable Player: Ron Amyotte (Weyburn Red Wings)
Most Sportsmanlike Player: Ron Amyotte (Weyburn Red Wings)