Robert Cuellar (born August 20, 1952) is an American former professional baseball player who played briefly with the Texas Rangers of the Major League Baseball (MLB) in 1977 as a relief pitcher. He is a graduate from the University of Texas and is of Mexican American descent. He has held several coaching positions in baseball, including pitching coach, bullpen coach, and manager. He is currently a special assistant in the player development department of the Los Angeles Dodgers