Lewis Glen Carpenter (January 12, 1932 – November 14, 2010) was an American football player and coach. He played college football for the University of Arkansas and professionally for ten seasons in the National Football League (NFL) as a halfback and fullback with the Detroit Lions, Cleveland Browns, and Green Bay Packers. He played on three NFL Championship teams, with Detroit in 1953 and with Green Bay in 1961 and 1962. After his playing career ended, Carpenter spent 31 years as an assistant coach in the NFL with the Minnesota Vikings (1964–1966), Atlanta Falcons (1967–1968), Washington Redskins (1969), St. Louis Cardinals (1970–1972), Houston Oilers (1970–1974), Green Bay Packers (1975–1985), Detroit Lions (1987–1988), and Philadelphia Eagles (1990–1994). Carpenter also coached the Frankfurt Galaxy of the World League of American Football in 1996 and at Southwest Texas State University. He concluded his 47 years of playing and coaching football at the end of the 1996 season. Scientific tests on his brain diagnosed post-mortem that he had an advanced case of chronic traumatic encephalopathy (CTE).
In 1996, after 47 years of playing and coaching professional NFL football, Carpenter reluctantly retired from the game he loved because of his health. On November 14, 2010, with his family at his side, he died from pulmonary fibrosis. Carpenter's last public appearance was in Green Bay's Lambeau Field for the "Alumni Weekend" on September 16 and 17, 2010.
Carpenter was inducted into the Arkansas Sports Hall of Fame in 1988, and the University of Arkansas Sports Hall of Honor in 2000. The "Lewis Carpenter University of Arkansas Scholarship" has been established in his memory through Chase Bank in New Braunfels, Texas.