Tony Diaz (born January 23, 1977) is a Dominican professional baseball coach for the Minnesota Twins of Major League Baseball.
Diaz was raised in the Dominican Republic. He graduated from Florida International University with a bachelors degree in marketing. He played in Minor League Baseball through 1995, and served as the manager for the baseball team at G. Holmes Braddock High School in Miami, Florida. Diaz served as the hitting coach for the Casper Ghosts from 2001 through 2006, taking over as their manager in 2007.The Rockies hired Diaz as their major league first base coach before the 2017 season. After the 2018 season, the Twins hired Diaz as their third base coach, replacing Gene Glynn.Diaz has two children. He and his wife, Lauren live in Scottsdale, Arizona.