Offseason
- October 3, 1996: Ricky Jordan was released by the Seattle Mariners.
- November 12, 1996: Jalal Leach was signed as a Free Agent with the Seattle Mariners.
- November 15, 1996: Dave Silvestri was selected off waivers by the Seattle Mariners from the Montreal Expos.
- December 21, 1996: Josías Manzanillo was signed as a Free Agent with the Seattle Mariners.
- January 10, 1997: Brent Mayne was signed as a Free Agent with the Seattle Mariners.
- January 24, 1997: Mike Blowers was signed as a Free Agent with the Seattle Mariners.
- February 20, 1997: Dennis Martínez was signed as a Free Agent with the Seattle Mariners.
- March 27, 1997: Dave Silvestri was selected off waivers by the Texas Rangers from the Seattle Mariners.
- March 28, 1997: Brent Mayne was released by the Seattle Mariners.
Read more about this topic: 1997 Seattle Mariners Season