Christianity in Indonesia

Indonesian Christians
Orang Kristen Indonesia
A church service in Gunungsitoli, Nias, c.1900.
Total population
29,403,015 (2023)
10.47% of the population
Regions with significant populations
Majority:
Central Papua, Highland Papua, Papua, South Papua, Southwest Papua, West Papua, East Nusa Tenggara, and North Sulawesi
Significant minority:
North Sumatra, Jakarta, West Kalimantan, Central Kalimantan, South Sulawesi, West Sulawesi, Central Sulawesi, North Maluku, Maluku
Scriptures
Bible
Languages
Indonesian (official), English (international worship services), various regional languages
Christianity in Indonesia by ethnic groups (2010)
  1. Batak (20.15%)
  2. Javanese (10.39%)
  3. Dayak (8.64%)
  4. Minahasa (6.3%)
  5. Chinese (5.19%)
  6. Betawi (0.65%)
  7. Balinese (0.21%)
  8. Others (48.57%)

Christianity is Indonesia's second-largest religion, after Islam. Indonesia also has the second-largest Christian population in Southeast Asia after the Philippines, the largest Protestant population in Southeast Asia, and the third-largest Christian population in Asia after the Philippines and China. Indonesia also has the second-largest Christian population in the Muslim world, after Nigeria, followed by Egypt. Indonesia's 29.4 million Christians constituted 10.47% of the country's population in 2023, with 7.41% Protestant (20.8 million) and 3.06% Catholic (8.6 million). Some provinces in Indonesia are majority Christian. In Indonesia, the word Kristen (lit.'Christian') refers to Protestantism, while Catholicism is referred to as Katolik. In the 21st century the rate of growth and spread of Christianity has increased, especially among the Chinese minority.