Joseph A. "Doc" Alexander (April 1, 1897 – September 12, 1975) was an American football player, who played center, tackle, guard, and end, and coach in the National Football League (NFL).^[1]

Alexander was born in Silver Creek, New York, the son of Russian immigrants, and was Jewish.^[1][2] He attended Syracuse University, and played for the school football team—twice being named All American at guard—as he attained a medical degree.^[3][4][2] He was inducted to the College Football Hall of Fame in 1954, and also into the International Jewish Sports Hall of Fame.^[2]

Alexander played for the Syracuse Pros (1921), and played professionally in the National Football League (NFL) for the Rochester Jeffersons (1921–24) and the New York Giants (1925–27).^[3] He was a two-time First-team All-Pro, in both 1921 and 1922.^[3] In 1922 he was the head coach of the Jeffersons, and in 1926 he was the head coach of the Giants.^[5]

• List of select Jewish football players