The Kaibubu of Indonesia

The Kaibubu of Indonesia, numbering approximately 900 people, are No Longer Unreached. They are an ethnolinguistic community of Indonesia. They are an Indigenous people in the Maluku-Central people cluster of the Malay Peoples affinity bloc. Their primary language is Malay, Ambonese and their primary religion is Protestantism.

Photo by Google. (2026). Image generated by Gemini 2.5 Flash: Kaibubu

Fast Facts:

Affinity Group: Malay Peoples
Country: Indonesia
People Cluster: Maluku-Central
Primary Language(s): Malay, Ambonese (abs)
Primary Religion(s): Protestantism
Population: 900
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 10% or Greater Evangelical
People Group ID: PG022667
View on Joshua Project

Pray for the Kaibubu 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.

Dig Deeper (Religion):

Primary Religion: Protestantism
Religious Affiliation: Christianity

61%
%

Dig Deeper (Language):

Primary Language: Malay, Ambonese
Language Family: Austronesian

100%
%

Media Resources in Malay, Ambonese:

Films:

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Bible Resources in Malay, Ambonese:

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Or check out the Malay, Ambonese bible at Bible.com

Linked from YouVersion

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% or Greater 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 Kaibubu:
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 Kaibubu 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 Kaibubu:
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 Kaibubu 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 Kaibubu:
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 Kaibubu of Indonesia

But those who desire to be rich fall into temptation, into a snare, into many senseless and harmful desires that plunge people into ruin and destruction.
read1 Timothy 6:9

Pray for those, rich and poor, who have put their trust in worldly things, and ask that they will be honest with themselves, acknowledge their need for God and turn to Him.

Other seeds fell on good soil and produced grain, some a hundredfold, some sixty, some thirty. He who has ears, let him hear.
readMatthew 13:8-9

Pray that they will have open hearts and minds to the Word of God, and that it will take root in their lives and bear fruit for His glory.

And after she was baptized, and her household as well, she urged us, saying, “If you have judged me to be faithful to the Lord, come to my house and stay.” And she prevailed upon us.
readActs 16:15

Pray that God will bring entire families and households to faith in Him and raise up servant-leaders from among them.

The Lord is not slow to fulfill his promise as some count slowness, but is patient toward you, not wishing that any should perish, but that all should reach repentance.
read2 Peter 3:9

Pray that those God sends to cross cultures will patiently endure hardships as they share the gospel, knowing that the Lord is not slow to fulfill His promise.

Kaibubu Across Countries (ROP3 - 104412) 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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