Louis "Lou" Possner (August 11, 1917 – March 8, 1990) was a Jewish American basketball player. Possner was an All-American center/forward at DePaul University. Following the close of his college career, Possner played parts of two seasons with the United States' National Basketball League (NBL), a league that in 1948 would merge with the Basketball Association of America to create the National Basketball Association.