Ōkawa (surname) explained

Ōkawa, Okawa, Ookawa or Ohkawa (written: 大川 or 大河, literally "big river") is a Japanese surname. Notable people with the surname include:

• , Japanese fencer
• Hisayuki Okawa (born 1971), athlete
• Misao Okawa (1898–2015), Japanese supercentenarian
• Nanase Ohkawa (born 1967), Japanese manga writer
• Ryuho Okawa (1956-2023), religious and political leader
• Shūmei Ōkawa (1886–1957), Japanese nationalist, Pan-Asian writer, indicted war criminal, and Islamic scholar
• , Japanese plasma physicist
• Tōru Ōkawa (born 1960), Japanese actor
• , Japanese AV idol