Koshi or Kōshi may refer to: Places Koshi River, a river in Nepal Koshi District, Niigata, a former district in Niigata Prefecture, Japan Koshi Province, a historic province of Japan Kōshi, Kumamoto, a city in Kumamoto Prefecture, Japan Kosi Zone, Nepal Koshi Rural Municipality Kosi, Cyprus, an abandoned village in Larnaca District Koshi, musical instrument, manufactured in France People with the name , Japanese water polo player , Japanese volleyball player Fictional characters , a character in Sumomomo Momomo , a character in "Haikyū!!" Other uses Kōshi or Kabura-ya, Japanese arrows. See signal arrow See also Kashi (disambiguation) Kosi (disambiguation) Japanese masculine given names