|Born: October 25, 1965|
Rock Island, Illinois
|September 18, 1990, for the San Francisco Giants|
|Last MLB appearance|
|October 1, 1999, for the Anaheim Angels|
|Runs batted in||72|
Decker began his coaching career as a hitting coach for the Salem-Keizer Volcanoes in 2001–02 and the Fresno Grizzlies in 2003–04. He then managed for Salem-Keizer (2005–07), the San Jose Giants (2008), the Connecticut Defenders (2009), and the Fresno Grizzlies (2010–11).
In 2012, he swapped positions with Bob Mariano, who replaced him as the Grizzlies' manager, and became coordinator of minor-league hitting instruction for the Giants. In 2015, he took his first major league coaching position as assistant hitting coach for the San Francisco Giants.
- Horowitz, Gary (May 1, 2015). "Decker back in The Show". Statesman Journal.
- "Steve Decker to lead Grizzlies Field Staff in 2010". MiLB.com. December 23, 2009.
- Schulman, Henry (January 25, 2012). "'Future manager Decker' takes a detour to help teach Giants prospects how to hit". San Francisco Chronicle.
- Baggarly, Andrew (April 29, 2015). "Joe Lefebvre steps down as hitting assistant, Steve Decker promoted to Giants major league staff". Bay Area News Group.