Chiaki Kawamata (川又千秋, Kawamata Chiaki?, born December 4, 1948 in Otaru, Hokkaidō, Japan) is a Japanese science fiction writer and critic. Chiaki Kawamata has won both the Seiun Award and the Nihon SF Taisho Award. Chaki Kawamata is also noted for the manga Emblem of Roto.