Download the People Group List (16 languages .csv)

Amharic - አማርኛ | Arabic - عربي
Bengali - বাংলা | Chinese (Simplified) - 中文（简体）
Chinese (Traditional) - 中文（繁體) | French - Français
German - Deutsch | Gujarati - ગુજરાતી
Hindi - हिन्दी | Indonesian - Bahasa Indonesia
Korean - 한국어 | Nepali - नेपाली
Portugese - Português | Russian - Русский
Spanish - Espanol | Tagalong / Filipino
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PEOPLE GROUP PROFILE

The Mentawai of Indonesia

The Mentawai of Indonesia, numbering approximately 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 affinity bloc. Their primary religion is Christianity - Protestantism. They primarily speak Mentawai.

Mentawai in Indonesia photo
Photo by Google. (2026). Image generated by Gemini 2.5 Flash: Mentawai

Fast Facts:

Affinity Group: Asian Pacific Rim Peoples
Country: Indonesia
People Cluster: Batak-Nias of Sumatra
Primary Language(s): Mentawai (mwv)
Primary Religion(s): Christianity - Protestantism
Population: 80,000
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 10% or Greater Evangelical
People Group ID: PG022518
View on Joshua Project

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Pray for the Mentawai of Indonesia

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Dig Deeper (Religion):

Primary Religion: Christianity - Protestantism
Religious Affiliation: Christianity

%
Christianity - Protestant… Adherents

Dig Deeper (Language):

Primary Language: Mentawai
Language Family: Austronesian

%
Mentawai Speakers

Media Resources in Mentawai:

Films:

Provided by the Jesus Film Project

View all resources

Bible Resources in Mentawai:

Provided by Faith Comes by Hearing

Or check out the Mentawai bible resources at Bible.com

Linked from YouVersion

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Next steps for the Mentawai

The Mentawai are Unengaged and Unreached, which means there are less than 2% evangelical Christian populations among which there are no known efforts focused on establishing self-sustaining churches consistent with evangelical faith and practice.

Begin signifcant prayer and fasting for this group
Send cross-cultural teams to discover and research this people group
Begin gospel seed sowing and church planting among this group

Next steps for the Mentawai

The Mentawai are Engaged yet Unreached, which means there are less than 2% evangelical Christian populations but there are sustained efforts at establishing self-sustaining churches consistent with evangelical faith and practice.

Continue prayer and fasting for this group
Continue gospel seed sowing and church planting among this group
Begin training up local leaders to lead and develop strategies to reach their own people

Next steps for the Mentawai

The Mentawai are No Longer Unreached, which means there are more than 2% evangelical Christian populations and there are churches consistent with evangelical faith and practice. There is still more to be done among them.

Empower local believers to begin praying for their own people
Continue gospel seed sowing and church planting among this group
Encourage local leaders to being leading church planting strategy and looking for Unreached and Unengaged groups nearby

Pray specifically for the Mentawai of Indonesia

Whoever makes a practice of sinning is of the devil, for the devil has been sinning from the beginning. The reason the Son of God appeared was to destroy the works of the devil.
read1 John 3:8

Pray for those living in darkness to recognize the destructive power of sin and the victory Christ has won over it.

O LORD, how manifold are your works! In wisdom have you made them all; the earth is full of your creatures.
readPsalm 104:24

Pray that they will see the wisdom and power of God in His creation and praise Him for His mighty works.

Fear not, for I am with you; be not dismayed, for I am your God; I will strengthen you, I will help you, I will uphold you with my righteous right hand.
readIsaiah 41:10

Pray that as people place their faith in Christ, they will not fear, for the Lord is with them, and He will strengthen, help, and uphold them with His righteous right hand.

And Jesus answered him, “Blessed are you, Simon Bar-Jonah! For flesh and blood has not revealed this to you, but my Father who is in heaven."
readMatthew 16:17

Pray that God who is in heaven will place believers in the lives of people who need to encounter the gospel and that He will reveal to them the truth of what they hear.

Mentawaian (ROP3 - 106551) reported in the following countries:

To download a comprehensive people group list in spreadsheet form, visit our Research Data page.

Peoplegroups.org relies on updates from the field and other organizations for much of our data, so if you have any updates, please contact us. We use various international naming standards. For a list of these standards and fields, visit our Definitions page.

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