Supergirl is the name of seven comic book series published by DC Comics, featuring various characters of the same name. The majority of the titles feature Superman's cousin Kara Zor-El.
Cover of Supergirl #1 (November 1972), featuring the Kara Zor-El version. Art by Bob Oksner.
Supergirl is the name of several fictional superheroines appearing in American comic books published by DC Comics. The original, current, and most well known Supergirl is Kara Zor-El, the cousin of superhero Superman. The character made her first appearance in Action Comics #252 and was created by Otto Binder and Al Plastino.
Iterations of Supergirl: the Silver Age original (top left), the Matrix version from the 1990s (top right), Linda Danvers (bottom left), and Cir-El (bottom right)
Super-Girl on the cover of Superman #123: Super-Girl (August 1958) Art by Curt Swan
Supergirl, Art by Curt Swan
"Supergirls", from Superman/Batman #24. Kara Zor-El, Linda Danvers, Cir-El, and Power Girl.