John Eugene "Gene" Martin (lifespan unknown) was an American professional baseball player, manager, scout, and front-office executive who served as farm system and scouting director and player personnel adviser of the Philadelphia Phillies of Major League Baseball between and .
Prior to joining the Phillies, Martin was a scouting supervisor and minor league manager in the New York Yankees organization. In , he led the Binghamton Triplets to the championship of the Class A Eastern League.
Martin served in the U.S. Navy in WWI.