Green Green (グリーングリーン, Gurīn Gurīn) is a Japanese, 12-episode anime adaptation of the H-game of the same name. A non-canon sequel exists to the story as a thirteenth episode, which was released at a later date. This 'Episode 13' is unlicensed and not included in the US release.

Media Blasters licensed Green Green for distribution in North America, and the first volume was released on May 16, 2006. They have since released the 12 TV episodes on three DVDs, first separately throughout 2006, and then in two different budget collections in 2007 (the original single volumes in a box) and 2009 (the three discs in one "Litebox" case). The series premiered in the U.S. television in January 2016 on the channel Toku.