Lawrence Joseph Gagner (born December 30, 1943) is a former American college and professional football player who was a guard in the National Football League (NFL) for five seasons during the 1960s and 1970s. Gagner played college football for the University of Florida, and was recognized as an All-American. He was a second-round pick in the 1966 NFL Draft, and played professionally for the Pittsburgh Steelers and the Kansas City Chiefs of the NFL.