This is a list of Hindu temples and their remains in Indonesia. Indonesia has been part of Indosphere of Greater India where sanskritization and Hinduism spread across Indonesia.[1][2] Hindus in Indonesia are a multi-ethnic society consisting of different Indonesian ethnicities, such as Balinese, Javanese, Indian and other ethnic groups. According to government statistics, the majority of Indonesian Hindus are Balinese that inhabit the island of Bali. This claim has been disputed by one of the leading Hindu bodies of the nation, the Parishada Hindu Dharma Indonesia (PHDI), which estimates there are about 18 million Hindus, indicating that most are not of Balinese origin.[3] There is also a significant Indonesian Indian Hindu minority settled in large cities. Numbers of Indonesian natives that adhere to a form of native Austronesian ancestral and natural worship might also be categorized as Hindus, such as Dayak people (Kaharingan), Batak Karo (Parmalim), Javanese (Kejawen) and, Baduy people (Sunda Wiwitan). Hindu Dayak and Kaharingan groups are concentrated in Central Kalimantan.