title: Ōsawa
text: # Ōsawa
  
  Ōsawa, Osawa or Oosawa (written: 大沢 or 大澤 lit. "big swamp") is a Japanese surname. Notable people with the surname include:
  
  * Chiho Osawa (大澤 ちほ, born 1992), Japanese ice hockey player
  * Eiji Osawa (born 1935), Japanese chemist
  * Itsumi Osawa (born 1966), Japanese actress, writer and singer
  * Kenji Osawa (born 1976), Japanese mixed martial artist
  * Kisaburo Osawa (1910–1991), Japanese aikidoka
  * Masaaki Ōsawa (born 1946), Japanese politician and governor of Gunma Prefecture
  * Masayo Ōsawa (1913–1945), Japanese diver
  * Masayuki Osawa (大沢 正行, born 1946), Japanese swimmer
  * Reiko Ōsawa (born 1915), Japanese diver
  * Shigeki Osawa (born 1986), Japanese mixed martial artist
  * Shinichi Osawa (born 1967), Japanese musician better known as Mondo Grosso
  * Takao Osawa (born 1968), Japanese actor
  