Death Note (デスノート, Desu Nōto) is a manga series created by writer Tsugumi Ohba and illustrator Takeshi Obata. The series centers on Light Yagami, a high school student who discovers a supernatural notebook dropped on Earth by Ryuk, a shinigami ("death god"), that allows Light to kill anyone by writing the victim's name in the notebook. The user must also know the face of the victim to prevent anyone with the same name from being harmed. The story follows Light's attempt to create and rule a world cleansed of evil using the notebook, and the complex conflict between him and his opponents.

Death Note was first serialized in 108 chapters by Shueisha in the Japanese manga magazine Weekly Shōnen Jump from December 2003 to May 2006. The series was also published in tankōbon (paperback) format in Japan starting in May 2004 and ending in October 2006, and since then has been translated internationally. The series was adapted into live-action films released in Japan on June 17, 2006, on November 3, 2006, and on February 2, 2008. The anime series aired in Japan from October 3, 2006, to June 26, 2007. A novel based on the series, written by Nisio Isin, was released in Japan on August 1, 2006.