Glenn Foster "Slats" Hardin (July 1, 1910 – March 6, 1975) was an American athlete, winner of 400 m hurdles at the 1936 Summer Olympics. Born in Derma, Mississippi, Glenn Hardin was the world's dominant 400 m hurdler in the 1930s and was equally tough in the 400 m flat race. Hardin was unbeatable between the 1932 and 1936 Olympics, winning the AAU title in 1933, 1934 and 1936 in 400 m hurdles and NCAA championships title in 1933 and 1934 in 440 yd (400 m) hurdles. Hardin finished his career at the Berlin Olympics, beating John Loaring from Canada by 0.3 seconds.