Hannya (般若, born October 18, 1978) is a Japanese hip-hop MC and actor from Sangenjaya in Setagaya, Tokyo; he is sometimes reported as born in Ōdate, Akita, which is his mother's hometown. Active since 1996, he is known for songs about war and peace and for lyrics critical of contemporary Japanese society.
He was once part of FUTURE SHOCK. In 2021 he left his label Shouwa Records and founded his own company, Yacchatta Enterprise, and in 2022 he set up FOR CHILDREN PROJECT, an organisation against child abuse.
In anime he performed "Professionalism", the opening theme of The Fable.