Kōichi

Kōichi, Koichi, Kouichi or Kohichi is a masculine Japanese given name.

Possible writings
Kōichi can be written using different kanji characters and can mean: The name can also be written in hiragana (こういち) or katakana (コウイチ).
 * 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"
 * 恒一, "constancy, one"
 * 耕一, "cultivate, one"
 * 孝市, "filial piety, market"

People with the name

 * Kohichi Amano (天野 浩一), 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 Hamada (浜田 宏一), Japanese economist
 * Kōichi Hamada (浜田 幸一), Japanese politician
 * Koichi Iida ((飯田 鴻一, 1888–1973), Japanese businessman
 * Kouichi Inoue (井上 幸一), 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
 * Kōichi Kinoshita (木下 浩一), Japanese shogi player
 * Kōichi Kitamura (1931–2007), Japanese voice actor
 * Kōichi Mashimo (born 1952), Japanese anime director
 * Koichi Miyano (宮野 洪一), Japanese rower
 * Koichi Mizushima (born 1965), Japanese gymnast
 * Kōichi Morishita (森下 広一), Japanese long-distance runner
 * Koichi Morita (army officer)
 * Koichi Morita (songwriter)
 * Koichi Murata (村田 航一), Japanese footballer
 * Koichi Nakamura (中村 光一), Japanese video game designer
 * Koichi Nakano (中野 浩一), 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
 * Koichi Ono (小野 光一), Japanese golfer
 * Kōichi Sakaguchi (坂口　候一, born 1968), Japanese voice actor
 * Kōichi Satō (actor) (佐藤 浩市), Japanese actor
 * Koichi Sato (biathlete) (佐藤 幸一), Japanese biathlete
 * Koichi Sato (footballer) (佐藤 洸一), Japanese footballer
 * Koichi Sato (philatelist) (佐藤 浩一), Japanese philatelist
 * Koichi Sato (ski jumper) (佐藤 耕一), Japanese ski jumper
 * Koichi Shoji (庄司浩一), Japanese murderer
 * Koichi Sugawara (菅原 貢一), Japanese bobsledder
 * Koichi Sugiyama (こういち; birth name 浩一, born 1931), Japanese video game composer
 * Kōichi Tabuchi (田淵 幸一), Japanese baseball player and manager
 * Koichi Tanaka (born 1959), Japanese Nobel Prize winner in chemistry
 * Koichi Togashi (冨樫 剛一), 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
 * Amakaze Kōichi (天風 浩一), 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 Hirose (広瀬康一), a character from the manga and anime series JoJo's Bizarre Adventure
 * 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 anime/manga Hanasaku Iroha
 * Kōichi Sakakibara, the main protagonist of the series Another
 * Koichi Kizakura, a character from the anime Danganronpa 3: The End of Hope's Peak High School
 * Koichi Haimawari, a character from the manga Boku no Hero Academia
 * Koichi Adachi, a character and main party member from the videogame Yakuza: Like a Dragon