The Justice Society of America (JSA) is a superhero team appearing in American comic books published by DC Comics. It was conceived by editor Sheldon Mayer and writer Gardner Fox during the Golden Age of Comic Books. It first appeared in All Star Comics #3, making it the first team of superheroes in comic books. Its original members were Doctor Fate, Hourman, the Spectre, Sandman, Atom, the Flash, Green Lantern and Hawkman.

The Golden Age of Comic Books describes an era in the history of American comic books from 1938 to 1956. During this time, modern comic books were first published and rapidly increased in popularity. The superhero archetype was created and many well-known characters were introduced, including Superman, Batman, Robin, Captain Marvel, Captain America, and Wonder Woman.