2026 Seattle Mariners season
| 2026 Seattle Mariners | |
|---|---|
| League | American League |
| Division | West |
| Ballpark | T-Mobile Park |
| City | Seattle, Washington |
| Owners | Baseball Club of Seattle, LP, represented by CEO John Stanton |
| President of baseball operations | Jerry Dipoto |
| General manager | Justin Hollander |
| Manager | Dan Wilson |
| Television | MLB Local Media (Aaron Goldsmith, Jay Buhner, Dave Valle, Angie Mentink, Ryan Rowland-Smith, Bill Krueger, Jen Mueller, Brad Adam) |
| Radio | ESPN-710 Seattle Mariners Radio Network (Rick Rizzs, Gary Hill Jr., Mark McLemore, Ken Phelps, Angie Mentink, Ryan Rowland-Smith, Shannon Drayer) |
The 2026 Seattle Mariners season will be the 50th season in franchise history and their 27th full season (28th overall) at T-Mobile Park, their home ballpark in Seattle, Washington. The Mariners will open and close their season in Seattle, with opening day on March 26 against the Cleveland Guardians and the regular season finale on September 27 against the Los Angeles Angels. The team is looking to improve their performance from their previous season, where they reached the 2025 American League Championship Series.
The Mariners plan to retire Randy Johnson's uniform number 51 on May 2. The team retired the number in 2025 for Ichiro Suzuki. The Mariners will wear a uniform patch commemorating their 50th season.