Ginzō Matsuo (松尾 銀三 Matsuo Ginzō, December 26, 1951 – August 25, 2001) was a Japanese voice actor who was born in Nakatsu, Oita, Japan as Kouichi Matsuo (松尾廣一 Matsuo Koichi). He was part of Aoni Production, 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).
On August 25, 2001, he died from acute subarachnoid hemorrhage. He was 49 years old.
Final role was in One Piece as Captain Smoker.