Sunao Tsuboi (坪井 直, Tsuboi Sunao; May 5, 1925 – October 24, 2021) was a Japanese anti-nuclear, anti-war activist, and teacher. He was a hibakusha, a survivor of the atomic bombing of Hiroshima, and was the co-chair of Nihon Hidankyo, a Japan-wide organisation of atomic and hydrogen bomb sufferers. He was awarded the Kiyoshi Tanimoto peace prize in 2011.
Source: “Sunao Tsuboi”, English Wikipedia (CC BY-SA 4.0), excerpt
