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), 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), 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