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 Ambai of Indonesia

The Ambai of Indonesia, numbering approximately 12,000 people, are No Longer Unreached. They are an ethnolinguistic community of Indonesia. They are an Indigenous people in the New Guinea people cluster of the Pacific Islander Peoples affinity bloc. Their primary language is Ambai and their primary religion is Sunni Islam.

Photo by Google. (2025). Image generated by Gemini 2.5 Flash: Ambai

Fast Facts:

Affinity Group: Pacific Islander Peoples
Country: Indonesia
People Cluster: New Guinea
Primary Language(s): Ambai (amk)
Primary Religion(s): Sunni Islam
Population: 12,000
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 10% or Greater Evangelical
People Group ID: PG022442
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Pray for the Ambai of Indonesia

Join others around the world in praying for the lost to be saved, the gospel to advance, the global Church to grow, and for laborers to be sent out and sustained in the harvest.

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Dig Deeper (Religion):

Primary Religion: Sunni Islam
Religious Affiliation: Islam

50%
%
Sunni Islam Adherents

Dig Deeper (Language):

Primary Language: Ambai
Language Family: Austronesian

76%
%
Ambai Speakers

Media Resources in Ambai:

Films:

Provided by the Jesus Film Project

View all resources

Bible Resources in Ambai:

Provided by Faith Comes by Hearing

Or check out the Ambai bible at Bible.com

Linked from YouVersion

View all resources

Explore Lostness and Next Steps

Unengaged and Unreached

Strategic Priority Index (SPI): Unengaged and Unreached (SPI: 2), 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.
Lostness Priority Index (LPI): Significantly Reached People Group, (LPI: 6), > 20% Evangelical.
Global Status of Evangelical Christianity (GSEC): 10% or Greater Evangelical (GSEC: 6), this people group is greater than or equal to 10% evangelical

Next steps for the Ambai:
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

SPI: Unreached yet Engaged

The Ambai 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.

Next steps for the Ambai:
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

SPI: No longer Unreached

The Ambai 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.

Next steps for the Ambai:
Empower local believers to begin praying for their own people
Continue gospel seed sowing and church planting
Encourage local leaders to being leading church planting strategy and looking for Unreached and Unengaged groups nearby

Pray specifically for the Ambai of Indonesia

Only in the LORD, it shall be said of me, are righteousness and strength; to him shall come and be ashamed all who were incensed against him.
readIsaiah 45:24

Pray that those who are weary and burdened by their own righteousness will find rest in the righteousness that comes through faith in Christ alone.

And your ears shall hear a word behind you, saying, ‘This is the way, walk in it,’ when you turn to the right or when you turn to the left.
readIsaiah 30:21

As the lost in this people group seek to know the truth of who God is, pray that the Spirit of God will draw them to Himself and guide them in the way they should go.

You keep him in perfect peace whose mind is stayed on you, because he trusts in you.
readIsaiah 26:3

Pray that as people place their faith in Christ, the Lord will keep them in perfect peace as they trust in Him.

The steps of a man are established by the LORD, when he delights in his way.
readPsalm 37:23

Pray that believers from near and far will serve here and trust in the Lord's timing as He establishes their steps.

Ambai Across Countries (ROP3 - 100262) 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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