Alvin Stanley Schwartz (November 17, 1916 – October 28, 2011) was an American comic book writer best known for his Batman and Superman stories.

Until ending his association with DC in 1958, Schwartz contributed comic-book scripts for such superheroes as Aquaman, Wonder Woman, the Flash, Green Lantern, the Newsboy Legion, Vigilante, Slam Bradley, and Tomahawk.

Among Schwartz's contributions to Superman was writing the first tale of Bizarro, denizen of an opposite, interdimensional world where "hello" means "goodbye", and citizens do good by doing bad.

Schwartz wrote three novels for Arco Press, one of which, the detective story Sword of Desire, won praise for its takeoff on Wilhelm Reich's orgone therapy, a popular psychotherapeutic technique used during the 1940s and 1950s.

Additionally, Schwartz wrote and lectured on superheroes, and received a Canada Council Grant for a study on religious symbolism in popular culture, using Superman as a springboard.