Koyanagi

Koyanagi (written: 小柳 lit. "small willow") is a Japanese surname. Notable people with the surname include:


 * Tsunekichi Koyanagi (小柳 常吉), Japanese sumo wrestler
 * Rumiko Koyanagi (小柳 ルミ子), Japanese actress and singer
 * Tatsushi Koyanagi (小柳 達司), Japanese footballer
 * Tomiji Koyanagi (小柳 富次), Imperial Japanese Navy admiral
 * Tomio Koyanagi (小柳 富男), Japanese diver
 * Yoshizo Koyanagi (小柳 美三), Japanese ophthalmologist
 * Yuki Koyanagi (小柳 ゆき), Japanese pop singer