我間乱~GAMARAN~ is a Japanese manga series by Yōsuke Nakamaru. It was serialized in Kōdansha's Weekly Shōnen Magazine from 2009 to 2013 and it was collected in 22 tankōbon volumes. A sequel manga series, 我間乱―修羅― [Gamaran: Shura], has been serialized since 2018.