Hanai (written: 花井 lit "flower well") is a Japanese surname. Notable people with the surname include:

• Kiyoaki Hanai, Japanese racing driver
• Ranko Hanai (花井 蘭子, 1918–1961), Japanese actress
• Rumi Hanai (花井 瑠美, born 1987), Japanese actress, model and former rhythmic gymnast
• Sho Hanai (花井 聖, born 1989), Japanese footballer

• Haruki Hanai (花井 春樹), a character in the manga series School Rumble

• Hānai, the Hawaiian cultural practice of informal adoption
• Hanai Sarrigan, a village in Hormozgan Province, Iran
• Saeed Hanaei

This page lists people with the surname Hanai.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.