Indigenous and Ethnic Religions of Indonesia

Indonesia's official six religions (Islam, Protestantism, Catholicism, Hinduism, Buddhism, Confucianism) do not cover the country's full religious complexity. Dozens of indigenous ethnic religions — referred to broadly as kepercayaan (beliefs) or by their specific names — survive across the archipelago. Officially they have semi-recognised status since a 2017 Constitutional Court ruling, allowing adherents to register their belief on national identity cards. The communities are small but culturally and historically significant.

The legal context

Until 2017, Indonesian citizens were required to declare one of the six official religions on their KTP (national identity card). Indigenous belief practitioners typically registered as "Hindu" or "Buddhist" as the closest category, or under whichever religion their family had nominally adopted.

The 2017 Constitutional Court ruling allowed indigenous beliefs (kepercayaan) as a seventh category. Implementation has been gradual but real — many indigenous communities now officially register their traditional beliefs.

Sunda Wiwitan

The pre-Islamic religion of the Sundanese people in West Java. Practised most visibly today by the Baduy community of about 12,000 people in southern Banten province. The Baduy divide into:

• Inner Baduy (about 1,200): strict traditionalists who refuse modern goods, electricity, modern transport, and most outsider contact
• Outer Baduy (about 11,000): less restrictive but still maintaining traditional dress, customs, and religious practice

Sunda Wiwitan includes ancestor veneration, sacred site practices, and traditional ceremonies tied to the agricultural cycle. Other Sundanese Sunda Wiwitan communities exist outside Baduy lands.

The Baduy can be visited (with a local guide and permit) from Ciboleger village. Inner Baduy require special arrangements and respect for strict rules (no photography, no soap, no modern goods carried in).

Kaharingan

The traditional religion of the Dayak peoples of Kalimantan. Officially classified under Hinduism for administrative purposes but doctrinally and ritually distinct. Kaharingan emphasises:

• Belief in a high creator god (Ranying Hatalla Langit)
• Ancestor veneration and elaborate funeral practices
• Sacred sites and ritualistic ceremonies
• The Tiwah secondary funeral ceremony (the deceased's bones are exhumed and ceremonially reburied)

Kaharingan is most practised by Dayak Ngaju in Central Kalimantan. Estimated practitioners: 1-2 million.

Parmalim (Ugamo Malim)

A revival movement among the Toba Batak of North Sumatra, founded in the early 20th century. Parmalim represents the pre-Christian Batak religion in a reformed monotheistic form, holding sacred texts called pustaha laklak and venerating Mulajadi Na Bolon (the high god).

Estimated practitioners: 5,000-10,000, mostly in the Toba Batak heartland around Lake Toba.

Aluk Todolo (Aluk Toraja)

The traditional religion of the Toraja people in South Sulawesi. Largely overlaid by Protestant Christianity in the 20th century but still present in some highland villages and embedded in the elaborate Toraja funeral practices that draw visitors worldwide.

Aluk Todolo features:

• Belief in a creator god (Puang Matua)
• Ancestor veneration central to all major life events
• The famous elaborate funerals with tau-tau wooden effigies, cliff burials, and buffalo sacrifices
• Tongkonan houses as sacred ancestral structures

Most modern Toraja are nominally Protestant but still observe many Aluk Todolo practices.

Marapu

The indigenous religion of Sumba island in East Nusa Tenggara. Marapu is animist, with elaborate ancestor veneration and traditional rituals tied to agricultural and life-cycle events. The famous Pasola — annual ritual horseback spear-throwing battles between villages — is a Marapu ceremony.

Marapu practitioners remain numerous in Sumba, though many are nominally Protestant or Catholic.

Other indigenous traditions

• Kejawen (Java): mystical Javanese tradition blending Hindu-Buddhist, Sufi, and pre-Islamic elements. Practised by perhaps 100,000+ people as a primary tradition, and influences cultural practice for millions more Javanese Muslims
• Adat istiadat (various): customary law-and-belief systems across many ethnic groups
• Wetu Telu (Lombok): a syncretic Islamic-traditional Sasak tradition
• Arat Sabulungan (Mentawai Islands): traditional Mentawai animism, largely displaced by Protestant Christianity in the 20th century but persisting in some communities
• Various Papuan animist traditions: highly localised; many continue alongside Christianity

Visiting indigenous communities

For respectful visitors interested in indigenous religious traditions:

• Baduy (Banten): accessible from Ciboleger with a guide; Inner Baduy require special arrangements
• Tana Toraja: many traditional villages welcome visitors; the funeral season (June-September) is particularly accessible
• Sumba: Marapu villages welcome visitors; Pasola festival in February-March is the highlight
• Central Kalimantan: upriver Dayak villages can be visited via boat from Palangka Raya
• Mentawai Islands: multi-day expeditions reach the more traditional villages

Standard etiquette: ask permission before photography, respect sacred sites, don't enter buildings or areas marked as restricted, follow local guidance on dress and behaviour.

The indigenous traditions of Indonesia represent some of the world's most distinctive religious heritage. Visitor interest has historically been mixed — many traditions have been pressured by missionary activity and state assimilation policies. The recent legal recognition is a slow but real shift toward acknowledging this pluralism.