Batu, officially the City of Batu (Indonesian: Kota Batu, Javanese: ꦏꦸꦛꦧꦠꦸ), is a landlocked city in the East Java Province of Indonesia. It is about 20 km to the northwest of Malang. Formerly, it was a part of Malang Regency; but in 2001, Batu became an independent city legalized by Act No. 11 of 2001, when it became an independent municipal city with its own mayor and council. With a population of 213,046 people at the 2020 Census, it lies on the southern slopes of Mount Arjuno-Welirang. Its population largely consists of Javanese. The town used to be a recreation place for the Dutch colonial officers in the Dutch colonial area (before 1945). Batu means "rock" in Indonesian.