Natsui
# Natsui

Natsui (written: 夏井 or 夏居) is a Japanese surname. Notable people with the surname include:

* Runa Natsui (夏居 瑠奈, born 1995), Japanese actress
* Shokichi Natsui (夏井 昇吉, 1925–2006), Japanese judoka
