The Sea Dayak of Malaysia

The Sea Dayak of Malaysia, numbering approximately 682,000 people, are No Longer Unreached. They are described as an ethnolinguistic community of Malaysia (Sarawak) They are an Indigenous people, with Iban, Sea Dayak as their ethnic/kinship group and are in the Borneo-Kalimantan people cluster of the Malay Peoples. Their primary religion is Ethnoreligion. They primarily speak Iban.

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

Fast Facts:

Affinity Group: Malay Peoples
Country: Malaysia
People Cluster: Borneo-Kalimantan
Primary Language(s): Iban (iba)
Primary Religion(s): Ethnoreligion
Population: 682,000
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 10% or Greater Evangelical
People Group ID: PG009325
View on Joshua Project

Pray for the Sea Dayak of Malaysia

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

60%
%
Ethnoreligion Adherents

Dig Deeper (Language):

Primary Language: Iban
Language Family: Austronesian

100%
%
Iban Speakers

Media Resources in Iban:

Films:

Bible Resources in Iban:

Or check out the Iban bible at Bible.com

Linked from YouVersion

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): Moderately Reached People Group, (LPI: 5), 6% to 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 Sea Dayak:
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 Sea Dayak 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 Sea Dayak:
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 Sea Dayak 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 Sea Dayak:
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 Sea Dayak of Malaysia

For by grace you have been saved through faith. And this is not your own doing; it is the gift of God, not a result of works, so that no one may boast.
readEphesians 2:8-9

Pray that the lost among them will receive the gift of salvation by grace through faith, not by works, and be created for good works.

Your kingdom come, your will be done, on earth as it is in heaven.
readMatthew 6:10

Pray that God's will be done on earth as it is in heaven, and that people will seek His kingdom and righteousness above all else, trusting in His provision.

In God, whose word I praise, in the LORD, whose word I praise, in God I trust; I shall not be afraid. What can man do to me?
readPsalm 56:10-11

Pray that as people place their faith in Christ, they will trust in the Lord's promises, knowing that He will uphold them with His righteous right hand.

And he went away and began to proclaim in the Decapolis how much Jesus had done for him, and everyone marveled.
readMark 5:20

Pray that God will bring people who appear beyond hope to faith in Jesus and that they will then go and tell others of the marvelous things He has done.

Iban Across Countries (ROP3 - 103933) 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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