Blue Beetle is the name of three superheroes appearing in a number of American comic books published by a variety of companies since 1939. The most recent of the companies to own rights to Blue Beetle is DC Comics, which bought the rights to the character in 1983, using the name for three distinct characters over the years.

A superhero or superheroine is a stock character who typically possesses superpowers or abilities beyond those of ordinary people, is frequently costumed concealing their identity, and fits the role of the hero; typically using their powers to help the world become a better place, or dedicating themselves to protecting the public and fighting crime. Superhero fiction is the genre of fiction that is centered on such characters, especially, since the 1930s, in American comic books, as well as in Japanese media.