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PEOPLE GROUP PROFILE

The Tati of Papua New Guinea

The Tati of Papua New Guinea, numbering approximately 1,100 people, are No Longer Unreached. They are described as an indigenous ethnic group of Papua New Guinea They are an Indigenous people, with Tati (Papua New Guinea) as their ethnic/kinship group and are in the New Guinea people cluster of the Pacific Islander Peoples. Their primary religion is Protestantism. They primarily speak Kaki Ae.

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

Fast Facts:

Affinity Group: Pacific Islander Peoples
Country: Papua New Guinea
People Cluster: New Guinea
Primary Language(s): Kaki Ae (tbd)
Primary Religion(s): Protestantism
Population: 1,100
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 10% or Greater Evangelical
People Group ID: PG010509
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Pray for the Tati of Papua New Guinea

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: Protestantism
Religious Affiliation: Christianity

35%
%
Protestantism Adherents

Dig Deeper (Language):

Primary Language: Kaki Ae
Language Family:

100%
%
Kaki Ae Speakers

Media Resources in Kaki Ae:

Films:

No entries found for: Kaki Ae(tbd). Help build some!

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Bible Resources in Kaki Ae:

Provided by Faith Comes by Hearing

Or check out the Kaki Ae bible at Bible.com

Linked from YouVersion

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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 Tati:
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 Tati 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 Tati:
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 Tati 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 Tati:
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 Tati of Papua New Guinea

If we say we have no sin, we deceive ourselves, and the truth is not in us. If we confess our sins, he is faithful and just to forgive us our sins and to cleanse us from all unrighteousness.
read1 John 1:9

Pray that God, who is faithful and just, will open the eyes of those who are lost and draw them to confess their sins and trust in Him to grant forgiveness.

Jesus said to him, “I am the way, and the truth, and the life. No one comes to the Father except through me."
readJohn 14:6

Pray that those who are searching for a way to God and desiring truth will encounter the good news of eternal life and accept it.

All this is from God, who through Christ reconciled us to himself and gave us the ministry of reconciliation.
read2 Corinthians 5:18

Pray that as people place their faith in Christ, they will serve as God's ambassadors, sharing the message of reconciliation with others.

To the weak I became weak, that I might win the weak. I have become all things to all people, that by all means I might save some.
read1 Corinthians 9:22

Ask God to raise up believers from around the world to go and share the hope of Jesus with the lost so that they might trust in Him and have the hope of eternal life.

Tati Across Countries (ROP3 - 109875) 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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