Players who played for the Athletics and Seattle Mariners
97 players
97 players have played for both the Athletics and the Seattle Mariners. Rick Honeycutt spent the most seasons with the two: 7 with the Athletics and 4 with the Seattle Mariners. On a roster now: Donovan Walton, Jhonny Pereda, and Emilio Pagan. Every season since 1876 is on file.
| Player | Pos | ATH | SEA |
|---|---|---|---|
| Rick Honeycutt | RP | 1988–1995 · 7 seasons | 1977–1980 · 4 seasons |
| Dave Henderson | LF | 1988–1993 · 6 seasons | 1981–1985 · 5 seasons |
| Mike Moore | SP | 1989–1992 · 4 seasons | 1982–1988 · 7 seasons |
| Dan Meyer | 3B | 1982–1985 · 4 seasons | 1977–1981 · 5 seasons |
| Glenn Abbott | SP | 1973–1976 · 4 seasons | 1977–1981 · 5 seasons |
| Diego Segui | P | 1962–1971 · 8 seasons | 1977 · 1 season |
| Stan Javier | LF | 1986–1995 · 6 seasons | 2000–2001 · 2 seasons |
| Edwin Nunez | RP | 1993–1994 · 2 seasons | 1982–1987 · 6 seasons |
| Gene Nelson | RP | 1987–1992 · 6 seasons | 1982–1983 · 2 seasons |
| Bruce Bochte | 1B | 1984–1986 · 3 seasons | 1978–1982 · 5 seasons |
| Eric Byrnes | LF | 2000–2005 · 6 seasons | 2010 · 1 season |
| Mike Blowers | 1B | 1998 · 1 season | 1992–1999 · 6 seasons |
| Steve Ontiveros | RP | 1985–1995 · 6 seasons | 1993 · 1 season |
| Tommy Milone | SP | 2012–2014 · 3 seasons | 2019–2023 · 3 seasons |
| Evan Scribner | RP | 2012–2015 · 4 seasons | 2016–2017 · 2 seasons |
| Arthur Rhodes | RP | 2004 · 1 season | 2000–2008 · 5 seasons |
| Scott Spiezio | 3B | 1996–1999 · 4 seasons | 2004–2005 · 2 seasons |
| Matt Young | RP | 1989 · 1 season | 1983–1990 · 5 seasons |
| Bob Kearney | C | 1982–1983 · 2 seasons | 1984–1987 · 4 seasons |
| Donovan Walton | 2B | 2026 · 1 season | 2019–2022 · 4 seasons |
| Kendall Graveman | RP | 2015–2018 · 4 seasons | 2020 · 1 season |
| Ryan Cook | RP | 2012–2015 · 4 seasons | 2018 · 1 season |
| Shawn Kelley | RP | 2018 · 1 season | 2009–2012 · 4 seasons |
| Eric O'Flaherty | RP | 2014–2015 · 2 seasons | 2006–2008 · 3 seasons |
| Jack Cust | LF | 2007–2010 · 4 seasons | 2011 · 1 season |
| Jim Mecir | RP | 2001–2004 · 4 seasons | 1995 · 1 season |
| Mark McLemore | 2B | 2004 · 1 season | 2000–2003 · 4 seasons |
| John Halama | SP | 2003 · 1 season | 1999–2002 · 4 seasons |
| Brent Gates | 3B | 1993–1996 · 4 seasons | 1997 · 1 season |
| Matt Sinatro | C | 1987–1988 · 2 seasons | 1990–1992 · 3 seasons |
| Bill Krueger | SP | 1983–1986 · 4 seasons | 1991 · 1 season |
| Mike Morgan | RP | 1978–1979 · 2 seasons | 1985–1987 · 3 seasons |
| Steve Henderson | RF | 1985–1987 · 3 seasons | 1983–1984 · 2 seasons |
| Dave Beard | SP | 1980–1983 · 4 seasons | 1984 · 1 season |
| Jim Essian | C | 1978–1984 · 4 seasons | 1982 · 1 season |
| Jesse Hahn | RP | 2015–2017 · 3 seasons | 2025 · 1 season |
| Fernando Rodney | RP | 2018–2019 · 2 seasons | 2014–2015 · 2 seasons |
| Seth Smith | RF | 2012–2013 · 2 seasons | 2015–2016 · 2 seasons |
| Milton Bradley | LF | 2006–2007 · 2 seasons | 2010–2011 · 2 seasons |
| Jack Hannahan | 3B | 2007–2009 · 3 seasons | 2009 · 1 season |
| Chris Snelling | LF | 2007 · 1 season | 2002–2006 · 3 seasons |
| Hiram Bocachica | RF | 2005–2007 · 3 seasons | 2004 · 1 season |
| Brian Lesher | 1B | 1996–1998 · 3 seasons | 2000 · 1 season |
| Rafael Bournigal | SS | 1996–1998 · 3 seasons | 1999 · 1 season |
| Jeff Schaefer | 3B | 1994 · 1 season | 1990–1992 · 3 seasons |
| Dann Howitt | RF | 1989–1991 · 3 seasons | 1993 · 1 season |
| Mike Kingery | CF | 1992 · 1 season | 1987–1989 · 3 seasons |
| Orlando Mercado | C | 1988 · 1 season | 1982–1984 · 3 seasons |
| Rich Bordi | SP | 1980–1988 · 3 seasons | 1982 · 1 season |
| Bill Caudill | RP | 1984–1987 · 2 seasons | 1982–1983 · 2 seasons |
| Jeff Burroughs | DH | 1982–1984 · 3 seasons | 1981 · 1 season |
| Dave Heaverlo | RP | 1978–1981 · 3 seasons | 1980 · 1 season |
| Jim Todd | P | 1975–1979 · 3 seasons | 1978 · 1 season |
| Kendrys Morales | DH | 2019 · 1 season | 2013–2014 · 2 seasons |
| Marc Rzepczynski | RP | 2016 · 1 season | 2017–2018 · 2 seasons |
| Danny Valencia | 3B | 2015–2016 · 2 seasons | 2017 · 1 season |
| Yonder Alonso | 1B | 2016–2017 · 2 seasons | 2017 · 1 season |
| Chris Denorfia | LF | 2008–2009 · 2 seasons | 2014 · 1 season |
| John Jaso | 1B | 2013–2014 · 2 seasons | 2012 · 1 season |
| Aaron Harang | SP | 2002–2003 · 2 seasons | 2013 · 1 season |
| Casper Wells | LF | 2013 · 1 season | 2011–2012 · 2 seasons |
| Brian Fuentes | RP | 2011–2012 · 2 seasons | 2001 · 1 season |
| Jeff Gray | RP | 2008–2009 · 2 seasons | 2011 · 1 season |
| Mike Sweeney | 1B | 2008 · 1 season | 2009–2010 · 2 seasons |
| Brett Tomko | SP | 2009 · 1 season | 2000–2001 · 2 seasons |
| Ruben Sierra | DH | 1993–1994 · 2 seasons | 2002 · 1 season |
| Joe Klink | RP | 1990–1991 · 2 seasons | 1996 · 1 season |
| Goose Gossage | RP | 1992–1993 · 2 seasons | 1994 · 1 season |
| Jerry Willard | C | 1986–1987 · 2 seasons | 1994 · 1 season |
| Jimmy Sexton | SS | 1981–1982 · 2 seasons | 1977 · 1 season |
| Jhonny Pereda | C | 2025 · 1 season | 2026 · 1 season |
| Jose Suarez | RP | 2026 · 1 season | 2026 · 1 season |
| Austin Adams | RP | 2024 · 1 season | 2019 · 1 season |
| Vinny Nittoli | RP | 2024 · 1 season | 2021 · 1 season |
| Tayler Scott | RP | 2023 · 1 season | 2019 · 1 season |
| Tommy La Stella | DH | 2020 · 1 season | 2023 · 1 season |
| Jake Lamb | 1B | 2020 · 1 season | 2022 · 1 season |
| Justin Grimm | P | 2022 · 1 season | 2018 · 1 season |
| Sergio Romo | RP | 2021 · 1 season | 2022 · 1 season |
| Chris Herrmann | C | 2019 · 1 season | 2018 · 1 season |
| Cory Gearrin | RP | 2018 · 1 season | 2019 · 1 season |
| Emilio Pagan | RP | 2018 · 1 season | 2017 · 1 season |
| Ross Detwiler | RP | 2016 · 1 season | 2018 · 1 season |
| Pat Venditte | RP | 2015 · 1 season | 2016 · 1 season |
| Travis Blackley | SP | 2012 · 1 season | 2004 · 1 season |
| Adam Kennedy | 3B | 2009 · 1 season | 2011 · 1 season |
| Jose Guillen | RF | 2003 · 1 season | 2007 · 1 season |
| Kevin Jarvis | RP | 1999 · 1 season | 2004 · 1 season |
| Dave McCarty | 1B | 2003 · 1 season | 1998 · 1 season |
| Andrew Lorraine | RP | 1997 · 1 season | 1998 · 1 season |
| Kevin Mitchell | DH | 1998 · 1 season | 1992 · 1 season |
| Mark Holzemer | RP | 1998 · 1 season | 1997 · 1 season |
| Torey Lovullo | 1B | 1996 · 1 season | 1994 · 1 season |
| A. Mike Brumley | LF | 1994 · 1 season | 1990 · 1 season |
| Brian Snyder | RP | 1989 · 1 season | 1985 · 1 season |
| Dave Collins | 1B | 1985 · 1 season | 1977 · 1 season |
| Paul Mitchell | SP | 1976 · 1 season | 1978 · 1 season |
Regular season, under every name each club has played as. A season split by a trade counts for both clubs where the game logs reach it (NBA from 1993-94, NFL 1994, NHL 1996, MLB 2001). Longest stay with the two first.