The Dayak indigenous religion is a form of animism called “Kaharingan”, and seems to be close with Hinduism. The practice of Kaharingan religion differs from tribe to tribe. The spirit is believed to partake in the celebration, a mark of honor and respect to past ancestries and blessings for a prosperous future.
Since 1970 missionaries came in to Kalimantan and most Dayaks converted to Christianity which was introduced by European and American missionaries. The relations between all religious groups are generally good. Despite the destruction of pagan religions in Europe by Christians, most of the people who try to conserve the Dayak’s religion are missionaries.In the Coastal cities the populations are largely Muslim, influenced by the relatively high cultural Javanese Majapahit Kingdoms and the Islamic Malay Sultanates that appeared periodically throughout Southeast Asian history.