Ouroboros (ウロボロス〜この愛こそ、正義。) is a Japanese drama series which tells the story about two men, one a detective and another a member of the yakuza, who seek to find the truth about a murder that happened twenty years ago which was clamped down by the police. It is based on the manga of the same name by Kanzaki Yuuya.

The 10-episode long drama was released in 2015 starring Toma Ikuta and Shun Oguri in the leading roles.

The first episode was aired on January 16, 2015 and the series concluded on March 20, 2015.Apart from Ikuta and Oguri, the series also starred Juri Ueno as Mizuki Hibino, Kotaru Yoshida as Kaoru Mishima, Kenichi Takito as Shinichi Chouno and Yo Yoshida as Tomiko Tachibana.

Aoi Nakamura appeared as a member of the supporting cast in Episode 1 as the petty thief Sawatari.

It was after eight years that Oguri and Ikuta came on board in the same project. The last time they shared screen was in the 2007 live action adaptation of the shoujo manga series Hanazakari no Kimitachi e or Hana-Kimi.