Kōichi Chiba (千葉 耕市, Chiba Kōichi, August 13, 1931 – November 9, 2000), born Osamu Chiba (千葉 治, Chiba Osamu), was a Japanese voice actor and sound director from Iwate. He was best known for his work with the Brave mecha anime series.

He voiced Nurarihyon in his first appearance in the 1985 GeGeGe no Kitarō anime, as well as voicing Guwagoze in the film GeGeGe no Kitarō: Gekitotsu!! Ijigen Yōkai no Dai-Hanran.

Selected filmography

GeGeGe no Kitarō characters

Other notable roles

Sound Director

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