2019 Seattle Mariners season
| 2019 Seattle Mariners | |
|---|---|
| League | American League |
| Division | West |
| Ballpark | T-Mobile Park |
| City | Seattle, Washington |
| Record | 68–94 (.420) |
| Divisional place | 5th |
| Owners | Baseball Club of Seattle, LP, represented by CEO John Stanton |
| Managers | Scott Servais |
| Television | Root Sports Northwest (Dave Sims, Aaron Goldsmith, Mike Blowers) |
| Radio | ESPN-710 Seattle Mariners Radio Network (Rick Rizzs, Aaron Goldsmith, Dave Sims) |
The 2019 Seattle Mariners season was the 43rd season in franchise history. The Mariners played their 20th full season and 21st overall at newly renamed T-Mobile Park, their home ballpark. The Mariners extended the longest active playoff drought in the four major North American professional sports, failing to make their first postseason appearance since 2001. The Mariners started the season with a 13–2 record, their best start in franchise history. However, they went 55–92 thereafter, finishing last in the American League West for the first time since 2012 and missing the playoffs.
With the Washington Nationals winning the World Series, the Mariners became the only MLB franchise to have never played in the World Series. The Mariners also set a then-MLB record by using 69 different players during the regular season, which would stand for five years before being broken by the 2024 Miami Marlins, tied by the Baltimore Orioles in 2025, and broken by the Atlanta Braves in the same year.
Two future Mariners Hall of Famers played their last game in 2019. Ichiro Suzuki retired after the second game in the second game of the season, part of a two-game series held in Tokyo, Japan. Félix Hernández made his final start in September, earning a win.