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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. 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:
TitleLink
JESUSView Film

1 film

Provided by the Jesus Film Project

View all resources

Bible Resources in Kuy:

Bible Name (Translation)VideoAudioText
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

And there is salvation in no one else, for there is no other name under heaven given among men by which we must be saved.
readActs 4:12

Pray that those walking in darkness among them will come to know the name by which they must be saved, and call upon Him in faith.

O LORD, how manifold are your works! In wisdom have you made them all; the earth is full of your creatures.
readPsalm 104:24

Pray that they will see the wisdom and power of God in His creation and praise Him for His mighty works.

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.

And if anyone will not receive you or listen to your words, shake off the dust from your feet when you leave that house or town. Truly, I say to you, it will be more bearable on the day of judgment for the land of Sodom and Gomorrah than for that town.
readMatthew 10:14-15

Pray for God to raise up and send out believers to share the gospel with those in this people group who do not yet follow Christ. Pray that they will be welcomed with open arms so that the people they share with will hear and receive the good news with joy.

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

Strategic Progress Index
All

3 people groups

PhotoPeople Group IDNameCountryPopulation ▼Strategic Progress IndexLanguageReligion
KuiPG010875KuiThailand377,000Unengaged and UnreachedKuyTheravada Buddhism
KuiPG033465KuiLaos46,500Engaged yet UnreachedKuyEthnoreligion
KuiPG008187KuiCambodia37,500Engaged yet UnreachedKhmerAnimism

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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