Gerald Ellis Hannahs (born March 6, 1953) is an American former professional baseball pitcher who worked in 16 career games in Major League Baseball for the Montreal Expos and Los Angeles Dodgers in parts of four seasons between 1976 and 1979. A left-hander, he stood 6 feet 3 inches (1.91 m) tall and weighed 210 pounds (95 kg). He was born in Binghamton, New York.