YuYu Hakusho (Japanese: 幽☆遊☆白書, Hepburn: Yū Yū Hakusho) is a Japanese manga series written and illustrated by Yoshihiro Togashi. It tells the story of Yusuke Urameshi, a teenage delinquent who is struck and killed by a car while attempting to save a child's life. After a number of tests presented to him by Koenma, the son of the ruler of the afterlife, Yusuke is revived and appointed the title of "Underworld Detective". With this title he must investigate various cases involving demons and apparitions in the Human World, with the manga gradually becoming more focused on martial arts battles and tournaments as it progresses. Togashi began creating YuYu Hakusho around November 1990, basing the series on his interests in the occult and horror films and an influence of Buddhist mythology.

《幽游白书》（日语：幽☆遊☆白書），是日本漫画家冨㭴义博（快去更猎人！）的作品，连载于《周刊少年Jump》1990年51号到1994年32号，单行本由集英社发售，全部有19册。后来陆续发行电视动画、电影、完全版漫画、电子游戏、文库版等相关作品。中文版在台湾由东立出版社代理，香港则由天下出版代理，中国大陆由中信出版集团代理。