Molly Hayes is a fictional superhero appearing in American comic books published by Marvel Comics. The character debuted in the award-winning series Runaways. Like every member of the original Runaways, she is the daughter of evil villains with special abilities; after the other older Runaways learn more about themselves, they raid Molly's home to find out her mutant abilities had already manifested. Often called "Mol" for short, Molly is the youngest Runaway and her innocence often serves as humor in the series, but she has demonstrated great insight at critical moments.

Runaways is a superhero comic book series published by Marvel Comics. The series features a group of teenagers who discover that their parents are part of an evil crime organization known as "the Pride". Created by Brian Vaughan and Adrian Alphona, the series debuted in July 2003 as part of Marvel Comics' "Tsunami" imprint. The series was canceled in September 2004 at issue #18, but due to high numbers of trade collection sales, Marvel revived the series in February 2005.