Iwai

Iwai or IWAI may refer to:


 * Iwai (surname)
 * Iwai, Ibaraki, a city in Japan
 * Iwai Station, a railway station in Minamibōsō, Chiba Prefecture, Japan
 * Iwai Rebellion, a rebellion against the Yamato court that took place in Tsukushi Province, Japan
 * I'wai, the culture hero of the Koko Y'ao in Australian Aboriginal mythology
 * Inland Waterways Authority of India
 * Inland Waterways Association of Ireland