Higashimurayama, city, northern Tokyo to (metropolis), east-central Honshu, Japan. It is situated just east of Lake Sayama and is bordered to the north by southern Saitama prefecture.
The town of Kumegawa, now the city centre, was a post station in the 8th century and an important local centre until the late 14th century. Higashimurayama remained the commercial hub of the surrounding tea-producing area until World War II. The city is now a residential suburb of the Tokyo-Yokohama metropolitan area, with some industry (food products, electric appliances). Pop. (2010) 153,557; (2015) 149,956.