Koichiro

Kōichirō, Koichiro, Kouichirou or Kohichiroh is a masculine Japanese given name.

Koichiro

Gender	Male
Origin
Word/name	Japanese
Meaning	Different meanings depending on the kanji used

Possible Writings

• 晃一郎, "clear, one, son"
• 光一郎, "light, one, son"
• 弘一郎, "vast, one, son"
• 鴻一郎, "prosperous, one, son"
• 紘一郎, "large, one, son"
• 浩一郎, "vigorous, one, son"
• 耕一郎, "till, one, son"
• 航一郎, "navigate, one, son"
• 倖一郎, "happiness, one, son"
• 孝一郎, "filial piety, one, son"
• 興一朗, "entertain, one, serene"
• 紘一朗, "large, one, serene"
• こういちろう in hiragana
• コウイチロウ in katakana

People

• Kōichirō Asakai (朝海 浩一郎, 1906–1995), Japanese politician
• Kōichirō Genba (玄葉 光一郎, born 1964), Japanese politician
• Koichiro Harada (原田 耕一郎, born 1941), Japanese mathematician
• Koichiro Hirayama (平山 紘一郎, born 1946), Japanese sport wrestler
• Kōichirō Hoshino (星野 倖一郎), Japanese manga artist
• Koichiro Ichimura (市村 浩一郎, born 1964), Japanese politician
• Koichiro Katafuchi (片渕 浩一郎, born 1975), Japanese footballer
• Koichiro Kawano (河野 晃一郎, born 1981), Japanese golfer
• Koichiro Kimura (木村 浩一郎, 1969–2014), Japanese mixed martial artist
• Koichiro Koga (古賀 幸一郎, born 1984), Japanese volleyball player
• Kōichirō Matsuura (松浦 晃一郎, born 1937), Japanese diplomat
• Koichiro Mitani (三谷 浩一郎, born 1968), Japanese judoka
• Kōichirō Morioka (森岡 紘一朗, born 1985), Japanese racewalker
• Koichiro Muroya (室屋 光一郎, born 1980), Japanese violinist and violist
• Koichiro Nagatomo (長友 耕一郎, born 1982), Japanese footballer
• Koichiro Nishi (西 興一朗, born 1979), Japanese actor
• Kōichirō Nishikawa (西川 公一郎, born 1949), Japanese particle physicist
• Koichiro Okuma (born 1970), Japanese instructor of Shotokan karate
• Koichiro Shima (嶋 浩一郎, born 1968), Japanese creative director
• Koichiro Shimizu (清水 鴻一郎, born 1946), Japanese surgeon and politician
• Kōichirō Tomita (冨田 弘一郎, 1925–2006), Japanese astronomer
• Kōichirō Uno (宇能 鴻一郎, born 1934), Japanese writer
• Kōichirō Yasunaga (安永 航一郎,, born 1962), Japanese manga artist
• Kōichirō Yuzawa (湯澤 幸一郎, born 1971), Japanese actor

Koichirō or Koichirou (written: 小一郎) is a separate given name, though it may be romanized the same way. Notable people with the name include:

• Kawada Koichiro (川田 小一郎, 1836–1896), Japanese businessman and banker
• Tachibana Koichirō (立花 小一郎, 1861–1929), Japanese general

Fictional characters

• Kōichirō Endo (遠藤 耕一郎), a character in the tokusatsu series Megaranger
• Kōichirō Kashima (鹿島 耕一郎), a character in the manga series All Out!!
• Koichirō Marito (鞠戸 孝一郎), a character in the anime series Aldnoah.Zero
• Kouichiro Sako (佐古 浩一郎), a character in the anime series Stratos 4
• Kōichirō Tanba (丹波 光一郎), a character in the manga series Ace of Diamond
• Kōichirō Takasugi (高杉 光一郎), a character in the anime series Da-Garn
• Kōichirō Nangou (南郷 洸一郎), a character in the anime series Slam Dunk
• Kōichirō Iketani (池谷 浩一郎), a character in the manga series Initial D