Ginzō Matsuo (松尾 銀三, Matsuo Ginzō; December 26, 1951 – August 25, 2001) was a Japanese actor, voice actor and narrator who was born in Nakatsu, Oita, Japan as Kōichi Matsuo (松尾廣一, Matsuo Kōichi). He was part of Aoni Production at the time of his death, but he established Gin Production in 1997. He was most known for the roles of Hemu-Hemu (Nintama Rantarō) and Ginnosuke Nohara (Crayon Shin-chan).