Alston with the Kane County Cougars in 2006
|Minnesota Twins – No. 41|
Born: December 8, 1971|
Mount Vernon, New York
|June 6, 1996, for the Colorado Rockies|
|Last MLB appearance|
|June 18, 1996, for the Colorado Rockies|
|Earned run average||9.00|
Garvin James Alston (born December 8, 1971) is a retired American professional baseball right-handed pitcher who played in Major League Baseball (MLB) for the Colorado Rockies. After retiring from playing, he entered coaching and currently serves as the pitching coach for the Minnesota Twins. 
Alston is an alumnus of Florida International University in Miami, Florida. He was drafted by the Colorado Rockies in the 10th round of the 1992 Major League Baseball draft. He made his MLB debut with the Rockies on June 6, 1996. He played in six games before pitching in his final game on June 18, 1996.
Alston coached in the Oakland Athletics organization from 2005 to 2015. He served as pitching coach of the Class A Kane County Cougars (2005–06) and Class A-Advanced Stockton Ports (2007–08), minor league rehab coordinator (2009–14), and minor league pitching coordinator (2015). The Arizona Diamondbacks hired Alston as their bullpen coach for the 2016 season. In June 2017, he was re-hired by the Athletics as the major league bullpen coach.
- Gabel, Chris (November 12, 2015). "Matt Williams, Garvin Alston join D-backs coaching staff". Fox Sports.
- "A's name Garvin Alston bullpen coach". MLB.com. June 19, 2017. Retrieved June 19, 2017.
- "Garvin Alston Stats". Baseball-Reference.com. Retrieved June 19, 2017.
- Career statistics and player information from Baseball-Reference, or Fangraphs, or The Baseball Cube, or Baseball-Reference (Minors)
| Minnesota Twins pitching coach
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