The San Chay of Vietnam

The San Chay of Vietnam, numbering approximately 170,000 people, are No Longer Unreached. They are an ethnolinguistic community of Vietnam and can also be known as Man Cao Lan. They are an Indigenous people, in the Tai people cluster of the Southeast Asian Peoples affinity bloc. Their primary religion is Ethnoreligion. They primarily speak Cao Lan.

San Chay in Vietnam photo
Photo courtesy of Joshua Project. Photo Source: Copyrighted ©️ 2025 Operation China, Asia Harvest Used with permission

Fast Facts:

Affinity Group: Asian Pacific Peoples
Country: Vietnam
People Cluster: Tai
Primary Language(s): Cao Lan (mlc)
Primary Religion(s): Ethnoreligion
Population: 170,000
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 5% or Greater but Less than 10% Evangelical
People Group ID: PG011217

Pray for the San Chay of Vietnam

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: Ethnoreligion
Religious Affiliation: Ethnoreligion

%
Ethnoreligion Adherents

Dig Deeper (Language):

Primary Language: Cao Lan
Language Family: Kra-Dai

%
Cao Lan Speakers

Media Resources in Cao Lan:

Films:

Bible Resources in Cao Lan:

Or check out the Cao Lan bible resources at Bible.com

Linked from YouVersion

Next steps for the San Chay

The San Chay are Unengaged and Unreached, 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.

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

Next steps for the San Chay

The San Chay 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.

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

Next steps for the San Chay

The San Chay 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.

Empower local believers to begin praying for their own people
Continue gospel seed sowing and church planting among this group
Encourage local leaders to being leading church planting strategy and looking for Unreached and Unengaged groups nearby

Pray specifically for the San Chay of Vietnam

When he saw the crowds, he had compassion for them, because they were harassed and helpless, like sheep without a shepherd.
readMatthew 9:36

Pray that those who have no hope and are in need of a Savior will be comforted by the Good Shepherd, who seeks to gather the lost and weary into His care.

And the Scripture, foreseeing that God would justify the Gentiles by faith, preached the gospel beforehand to Abraham, saying, "In you shall all the nations be blessed"
readGalatians 3:8

Ask the Lord to fulfill His promise to Abraham that all nations would be blessed by advancing the gospel to every people group who has yet to receive it.

Jesus said, ‘Truly, I say to you, there is no one who has left house or brothers or sisters or mother or father or children or lands, for my sake and for the gospel, who will not receive a hundredfold now in this time, houses and brothers and sisters and mothers and children and lands, with persecutions, and in the age to come eternal life.
readMark 10:29-30

Pray that as people place their faith in Christ, they will know that when they make sacrifices to follow Jesus, He is there with them and will bless them abundantly in this life and in the life to come.

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. 

Cao Lan reported in the following countries (ROP3):

To download a comprehensive people group list in spreadsheet form, visit our Research Data page.

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