Gamaran (我間乱, Romanized as GAMARAN in Japan; ; Literally meaning "Between our Turbulent"; ) is a 2009 shōnen manga written and illustrated by Yousuke Nakamaru. Gamaran chronicles the adventures of Kurogane Gama as he competes in the Grand Tournament of Unabara.

Gamaran has been continuously serialized in the Japanese manga anthology Weekly Shonen Magazine since May 2009, and has been collected in 11 tankōbon volumes As of 17 June 2011.