R.O.D: Read or Die (Japanese: リード・オア・ダイ, Hepburn: Rīdo Oa Dai) is a Japanese light novel series written by Hideyuki Kurata, published under Shueisha's Super Dash Bunko imprint. Read or Die follows Yomiko Readman, codename "The Paper", an agent for the (fictional) Special Operations Division of the British Library. There are currently 11 Read or Die novels. In volume 11, a note stated that the series would end with the upcoming volume 12. In June 2016, it was announced via Twitter that volume 12 would be released in August, and that there would be a volume 13.

Along with the novels, Kurata scripted the official R.O.D manga illustrated by Shutaro Yamada, which was originally published in Ultra Jump magazine and later printed into four paperback volumes, and Read or Dream, a manga illustrated by Ran Ayanaga set in the same universe as Read or Die.

The popularity of the Read or Die novels and manga resulted in the production of an OVA adaptation in 2001, which was directed by Koji Masunari and produced by SME Visual Works. In 2003, Aniplex produced R.O.D the TV, a 26-episode animated television series, which served as a sequel to the OVA and introduced Read or Dream's characters to those from Read or Die.

On February 25, 2012, a new manga called R.O.D Rehabilitation started in the Super Dash & Go magazine, the story tells of a city created by Bibliomania, Bibliopolis.

On August 22, 2016, the twelfth light novel was announced, slated for release on August 26. The possibility of a new R.O.D anime was also hinted at in the announcement.