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PEOPLE GROUP PROFILE

The Kui of Thailand

The Kui of Thailand, numbering approximately 377,000 people, are Unengaged and Unreached. They are described as an indigenous ethnic group of mainland southeast Asia They are an Indigenous people, with Kui (Thailand) as their ethnic/kinship group and are in the Mon-Khmer people cluster of the Southeast Asian Peoples. Their primary religion is Theravada Buddhism. They primarily speak Kuay.

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

Fast Facts:

Affinity Group: Southeast Asian Peoples
Country: Thailand
People Cluster: Mon-Khmer
Primary Language(s): Kuay (kdt)
Primary Religion(s): Theravada Buddhism
Population: 377,000
Strategic Progress Index (SPI): Unengaged and Unreached
Global Status of Evangelical Christianity (GSEC): Less than 2% Evangelical, No Active CP Activity
People Group ID: PG010875
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Pray for the Kui of Thailand

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: Theravada Buddhism
Religious Affiliation: Buddhism

83%
%

Dig Deeper (Language):

Primary Language: Kuay
Language Family: Austroasiatic

84%
%

Media Resources in Kuay:

Films:

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Provided by the Jesus Film Project

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Bible Resources in Kuay:

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Provided by Faith Comes by Hearing

Or check out the Kuay 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: 0), 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): Frontier Unreached People Group, (LPI: 0), < 0.1% Evangelical.
Global Status of Evangelical Christianity (GSEC): Less than 2% Evangelical, No Active CP Activity (GSEC: 1), this people group is less than 2% evangelical, some evangelical resources are available, but there has been no active church planting among them within the past two years

Next steps for the Kui:
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 Kui 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 Kui:
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 Kui 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 Kui:
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 Kui of Thailand

But Jesus said, "Let the little children come to me and do not hinder them, for to such belongs the kingdom of heaven"
readMatthew 9:14

Pray that those who are spiritually dead will recognize their need for spiritual nourishment and turn to the One who offers true fulfillment.

And he said to the woman, “Your faith has saved you; go in peace.”
readLuke 7:50

Pray for the good news of Jesus Christ to reach many so that they can place their faith in Him and have lasting hope.

For this reason, when I could bear it no longer, I sent to learn about your faith, for fear that somehow the tempter had tempted you and our labor would be in vain.
read2 Thessalonians 3:5

Pray that as people place their faith in Christ, they will persevere according to God's command, walk in faith, and be strong so that they can resist the evil one’s deception.

For great is the Lord, and greatly to be praised; he is to be feared above all gods.
readPsalm 96:4

Pray that God will raise up believers to declare His glory among the lost, so that they may know that He is great and greatly to be praised, that He is exalted above all gods.

Kui Across Countries (ROP3 - 105352) 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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