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The Kui of Thailand

The Kui of Thailand, numbering approximately 377,000 people, are Unengaged and Unreached. They are an indigenous ethnic group of mainland southeast Asia. They mostly adhere to Theravada Buddhism and Kuy is their primary language.

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): Kuy (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 Recent 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%
%
Theravada Buddhism Adherents

Dig Deeper (Language):

Primary Language: Kuy
Language Family: Austroasiatic

84%
%
Kuay Speakers

Media Resources in Kuy:

Films:
Title Link
JESUS View Film

1 film

Provided by the Jesus Film Project

View all resources

Bible Resources in Kuy:

Bible Name (Translation) Video Audio Text
Wycliffe Bible Translators ✓ ✓ ✓

1 entry

Provided by Faith Comes by Hearing

Or check out the Kuy 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: 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 Recent 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

Pray specifically for the Kui of Thailand

While he was coming, the demon threw him to the ground and convulsed him. But Jesus rebuked the unclean spirit and healed the boy, and gave him back to his father.
readLuke 9:42

Pray that those who are living outside of the hope of the gospel will know and trust that Jesus offers freedom from the oppression of sin and hope in eternal life.

And this commandment we have from him: whoever loves God must also love his brother.
read1 John 4:21

Pray that the good news of God's love will reach everyone in this people group, and that His love will compel them to love others as Christ has loved us.

Praising God and having favor with all the people. And the Lord added to their number day by day those who were being saved.
readActs 2:47

Pray that as people place their faith in Christ, God will use their faith and their church community as a testimony to the watching world and grow His Church.

And he said to them, “Truly, I say to you, there is no one who has left house or wife or brothers or parents or children, for the sake of the kingdom of God, who will not receive many times more in this time, and in the age to come eternal life.”
readLuke 18:29-30

Pray that God will raise up people to go and share the gospel and help them trust His promise that anyone who has left those they treasure for the sake of the kingdom of God will receive many times more in this life and in the life to come.

Kui Across Countries (ROP3 - 105352) reported in the following countries:

Strategic Progress Index

All

3 people groups

Photo People Group ID Name Country Population ▼ Strategic Progress Index Language Religion
Kui PG010875 Kui Thailand 377,000 Unengaged and Unreached Kuy Theravada Buddhism
Kui PG033465 Kui Laos 46,500 Engaged yet Unreached Kuy Ethnoreligion
Kui PG008187 Kui Cambodia 37,500 Engaged yet Unreached Khmer Animism

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 Data Standards section.

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