Koiwai Explained

Koiwai (written: 小岩井 lit "small rock well") is a Japanese surname. Notable people with the surname include:

• Eichi Karl Koiwai (1920–2009), American judoka
• , Japanese voice actress
• , Japanese figure skater
• Sakura Koiwai (小祝さくら, born 1998), Japanese golfer

Fictional characters

• , titular character of the manga series Yotsuba&!
• Yoshino Koiwai, character from Masamune-kun's No Revenge series

See also

• Koiwai Station, a railway station in Takizawa, Iwate Prefecture, Japan