Marvel Mystery Comics is an American comic book series published during the 1930s–1940s period known to fans and historians as the Golden Age of Comic Books. It was the first publication of Marvel Comics' predecessor, Timely Comics, a division of Timely Publications.

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.