Anthony Christopher Clark is an American professional baseball player and executive. He played in Major League Baseball as a first baseman from 1995 to 2009 and is the sixth executive director of the Major League Baseball Players Association (MLBPA), a position he has held since 2013.

The Major League Baseball Players Association (MLBPA) is the labor union representing all current Major League Baseball players. All players, managers, coaches, and athletic trainers who hold or have held a signed contract with a Major League club are eligible for membership in the Association.