Kōichi, Koichi, Kouichi or Kohichi is a masculine Japanese given name. Possible writings Kōichi can be written using different kanji characters and can mean: 晃一, "clear, one" 幸一, "happiness, one" 光一, "light, one" 孝一, "filial piety, one" 弘一, "vast, one" 浩一, "abundance, one" 宏一, "wide, one" 耕一, "cultivate, one" 孝市, "filial piety, market" The name can also be written in hiragana (こういち) or katakana (コウイチ). People with the name , Japanese baseball player Koichi Chigira (孝一, born 1959), Japanese anime director Koichi Domoto (born 1979), Japanese performing artist Kōichi Fukaura, Japanese shogi player Koichi Fukuda (born 1975), Japanese musician Koichi Iida ((飯田 鴻一, 1888–1973), Japanese businessman , Japanese golfer Koichi Ishii (浩一, born 1964), Japanese game designer Koichi Kato (LDP) (born 1939), Japanese politician Koichi Kato (DPJ) (born 1964), Japanese politician Koichi Kawakita (born 1942), Japanese special effects artist Kōichi Kido (1889–1977), Lord Keeper of the Privy Seal of Japan during World War II , Japanese shogi player Kōichi Kitamura (1931–2007), Japanese voice actor Kōichi Mashimo (born 1952), Japanese anime director , Japanese rower Koichi Mizushima (born 1965), Japanese gymnast , Japanese long-distance runner Koichi Morita (army officer) Koichi Morita (songwriter) , Japanese footballer , Japanese video game designer , former professional racing cyclist and ten-consecutive-time world champion in track cycling sprint Koichi Nishimura (born 1973), Japanese volleyball player Koichi Omura (大村 皓一, born 1938), Japanese computer animator , Japanese golfer Kōichi Sakaguchi (坂口 候一, born 1968), Japanese voice actor , Japanese actor , Japanese biathlete , Japanese footballer , Japanese philatelist , Japanese ski jumper , Japanese murderer , Japanese bobsledder Koichi Sugiyama (こういち; birth name 浩一, born 1931), Japanese video game composer , Japanese baseball player and manager Koichi Tanaka (born 1959), Japanese Nobel Prize winner in chemistry , Japanese footballer and manager Koichi Tohei (born 1920), Japanese aikido practitioner Kōichi Tokita (born 1961), Japanese manga artist Kōichi Tōchika (born 1971), Japanese voice actor Koichi Wakata (born 1963), Japanese astronaut Kōichi Yamadera (born 1961), Japanese voice actor Koichi Kobayashi (born 1952), Japanese Go player Koichi Morishita (born 1967), Japanese long-distance runner , Japanese sumo wrestler Fictional characters Kouichi Kimura, from the TV series Digimon Frontier Koichi Shido, from manga/anime Highschool of the Dead Kouichi Hayase, from manga/anime Linebarrels of Iron Koichi Zenigata, from Lupin III Koichi Hayama, from adult anime/game Moonlight Lady Koichi Hiramoto, from Wangan Midnight Koichi Kijima, from Wangan Midnight Kōichi Tanemura, a character from the