Antonio Manuel Diaz (born January 23, 1977) is a Dominican professional baseball coach.

[1] He received multiple professional contract offers as a teenager but, on the advice of his youth coach, Manny Mota, he emigrated to the United States at 18 to play college baseball instead.

He served as the manager for the baseball team at G. Holmes Braddock High School in Miami, Florida.

[1][3] The Rockies hired Diaz as their major league first base coach before the 2017 season.

[4] After the 2018 season, the Twins hired Diaz as their third base coach, replacing Gene Glynn.