John Franco, American baseball player
John Anthony Franco (born September 17, 1960) is an American former professional baseball player. He played in Major League Baseball as a left-handed relief pitcher between 1984 and 2005. Franco established himself as an All-Star player with the Cincinnati Reds before spending the majority of his career with the New York Mets. He ended his 22-year career with one final season with the Houston Astros.

Franco's 1,119 career games pitched is a National League record, and ranks fourth in major league history. His 424 career saves ranks fifth all-time in major league history (ranking second when he retired), and remains the most by a left-hander. For 15 of his 22 seasons, he played for the New York Mets, serving as team captain in his final years with the team. Franco was inducted into the New York Mets Hall of Fame in 2012.