The Japanese people are the predominant ethnic group of Japan. Worldwide, approximately 130 million people are of Japanese descent; of these, approximately 127 million are residents of Japan. People of Japanese ancestry who live in other countries are referred to as nikkeijin . The term "Japanese people" may also be used in some contexts to refer to a locus of ethnic groups including the Yamato people, Ainu people, and Ryukyuans.