Gankutsuou: The Count of Monte Cristo is a Japanese anime television series produced by Gonzo. An adaptation of the 1844 novel The Count of Monte Cristo by Alexandre Dumas; the 24-episode series aired on Japanese television between October 2004 and March 2005. It was licensed for a Western release first by Geneon Entertainment and later by Funimation. The series was adapted into a CD drama, a trilogy of novels by screenwriter Shuichi Kouyama, and a manga series written and drawn by series creator Mahiro Maeda, with additional story elements written by Yura Ariwara which ran from 2005 to 2008.

The Count of Monte Cristo is an adventure novel written by French author Alexandre Dumas (père) completed in 1844. It is one of the author's most popular works, along with The Three Musketeers. Like many of his novels, it was expanded from plot outlines suggested by his collaborating ghostwriter Auguste Maquet.