1991 Seattle Mariners season
| 1991 Seattle Mariners | |
|---|---|
| League | American League |
| Division | West |
| Ballpark | Kingdome |
| City | Seattle, Washington |
| Record | 83–79 (.512) |
| Divisional place | 5th |
| Owner | Jeff Smulyan |
| General manager | Woody Woodward |
| Manager | Jim Lefebvre |
| Average attendance | 26,517 |
| Television | KSTW-TV 11 (Dave Niehaus, Rick Rizzs, Joe Simpson) KIRO-TV 7 (Greg Gumbel, Joe Simpson) |
| Radio | KIRO 710 AM (Dave Niehaus, Rick Rizzs, Joe Simpson) |
The 1991 Seattle Mariners season was the 15th since the franchise's creation. It was the first winning season in franchise history, as the Mariners finished fifth in the American League West with a record of 83–79 (.512). Home attendance at the Kingdome was the highest to date, exceeding 2.1 million.
After the season, the contract of third-year manager Jim Lefebvre was not renewed despite his performance, and he was succeeded by third-base coach Bill Plummer in 1992.
This was the last full season under the ownership of Jeff Smulyan; the club was sold the following July.