Hell Girl (Japanese: 地獄少女, Hepburn: Jigoku Shōjo), also known as Jigoku Shōjo: Girl from Hell, is a Japanese anime series conceptualized by Hiroshi Watanabe and produced by SKY Perfect Well Think, Tokyo MX, Wakasa Seikatsu, Fujishoji, Aniplex and Studio Deen. It is directed by Watanabe and Takahiro Omori, with Kenichi Kanemaki handling series composition, Mariko Oka designing the characters and Yasuharu Takanashi, Hiromi Mizutani and Kenji Fujisawa composing the music. The series focuses on the existence of a supernatural system that allows people to take revenge by having other people sent to Hell via the services of the mysterious title character and her assistants who implement this system. Revenge, injustice, hatred, and the nature of human emotions are common themes throughout the series.

It was broadcast across Japan on numerous television stations, including Animax, Tokyo MX, MBS and others, between October 2005 and April 2006. A second season, titled Hell Girl: Two Mirrors, was broadcast from October 2006 to April 2007. A third season, titled Hell Girl: Three Vessels, was broadcast from October 2008 to April 2009. A fourth season, Hell Girl: The Fourth Twilight, was broadcast from July to September 2017.