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People group profile · PG022518

The Mentawai of Indonesia

The Mentawai of Indonesia, numbering about 80,000 people, are No Longer Unreached. They are an ethnolinguistic community of Indonesia.

They are an indigenous people in the Batak-Nias of Sumatra people cluster of the Malay Peoples. Their primary religion is Protestantism, and they primarily speak Mentawai.

Pray for the MentawaiPrint profile

AI-generated illustration representing the Mentawai people
AI-generated illustration, not a photograph. Photo by Google. (2026). Image generated by Gemini 2.5 Flash: Mentawai

Fast facts

Country
Indonesia
Population
80,000
Affinity group
Asian Pacific Rim Peoples
People cluster
Batak-Nias of Sumatra
Primary language
Mentawai (mwv)
Primary religion
Protestantism
Strategic Progress Index ?
No Longer Unreached
Evangelical
20% or Greater but Less than 30%
GSEC ?
10% or Greater Evangelical
Lostness priority ?
Significantly Reached People Group
Region
South-Eastern Asia, Asia
Location
West Sumatra province: Sumatra island; Mentawai islands, across from Padang city

Where they live

Gospel status

The Mentawai are No Longer Unreached, which means 2% or more are evangelical Christians. In GSEC terms, this people group is greater than or equal to 10% evangelical.

  • Congregations exist Yes
  • Church planting in the last two years No Churches Planted

Next steps for the Mentawai

  • Pray for the churches among this group to grow in faithfulness and maturity
  • Equip believers to reach the unreached peoples around them
  • Send out laborers from this people to the nations

Primary religion

Protestantism · Christianity

Primary language

Mentawai · Austronesian family

100% speak Mentawai

Gospel resources in Mentawai

  • Bible available, published 2015
  • JESUS Film available
  • Radio programs not available
  • Gospel recordings available
  • Audio resources available
  • Bible stories not available

Films

Bibles

Find more at the JESUS Film Project, Bible.com and Faith Comes by Hearing.

Pray for the Mentawai

  1. 2 Timothy 2:2. Pray for faithful local leaders who will teach others, so that the church multiplies.
  2. Ephesians 5:8. Pray that those walking in darkness will turn to the light and live as children of light.
  3. Romans 10:14–15. Ask God to send messengers, so that people can hear, believe and call on the name of the Lord.
  4. Matthew 9:37–38. Ask the Lord of the harvest to send out laborers into his harvest field.

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