Americans in Japan

Americans in Japan (在日アメリカ人/在日米国人, Zainichi Amerikajin/Zainichi Beikokujin) are citizens of the United States residing in Japan. As of December 2023, there were 63,408 American citizens registered as foreign residents of Japan, forming 2.0% of the total population of registered aliens, according to statistics from Japan's Ministry of Justice. This made Americans the ninth-largest group of foreign residents in Japan, having been surpassed in number by Vietnamese residents, Nepalese residents, Indonesian residents, and Burmese residents since 2011.

In addition to registered foreign residents, a significant number of American military personnel, civilian workers, and their dependents live in Japan due to the presence of the United States military in Japan under the U.S.–Japan Security Treaty. Approximately 70% of American military personnel in Japan are stationed in Okinawa Prefecture.