Mariners in the Majors
| MARINER | POSITION | GLSCL Years | MLB Teams | MLB Years |
| BARTEE, KIMERA | OF | 1991 | DET, CIN, COL | 1996-2001 |
| BASSITT, CHRIS | P | 2009 | CHW, OAK, NYM, TOR | 2014-2016, 2018- PRES |
| BRADY, DOUG | INF | 1990 | CHW | 1995 |
| GRAMAN, ALEX | P | 1998 | NYY | 2004-2005 |
| HAYHURST, DIRK | P | 2002 | SD, TOR | 2008-2009 |
| HOYING, JAROD | OF | 2008-2009 | TEX, TOR | 2016-2017, 2021 |
| KRAUSS, MARC | OF | 2007 | HOU, LAA, TB, DET | 2013-2015 |
| LUEBKE, CORY | P | 2007 | SD, PIT | 2010-2012, 2016 |
| MCCLELLAN, ZACH | P | 1997-1998 | COL | 2007 |
| MILLER, TRAVIS | P | 1993 | MIN | 1996- 2002 |
| SHUEY, PAUL | P | 1990 | CLE, LAD, BAL | 1994- 2003, 2007 |
| SIKORSKI, BRIAN | P | 1994 | TEX, SC, CLE | 2000, 2006 |
| WENGERT, DON | P | 1990 | OAK, SD, CHC, KC, ATL, DIT | 1995- 2001 |