1984 Seattle Mariners season
| 1984 Seattle Mariners | ||
|---|---|---|
| League | American League | |
| Division | West | |
| Ballpark | Kingdome | |
| City | Seattle, Washington | |
| Record | 74–88 (.457) | |
| Divisional place | 5th | |
| Owners | George Argyros | |
| General managers | Hal Keller | |
| Managers | Del Crandall, Chuck Cottier (September 1)  | |
| Television | KSTW-TV 11 | |
| Radio | KVI 570 AM: (Dave Niehaus, Rick Rizzs, Nelson Briles)  | |
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The Seattle Mariners 1984 season was their eighth since the franchise creation. They finished fifth in the American League West with a record of 74–88 (.457).