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Amharic - አማርኛ | Arabic - عربي
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Chinese (Traditional) - 中文（繁體) | French - Français
German - Deutsch | Gujarati - ગુજરાતી
Hindi - हिन्दी | Indonesian - Bahasa Indonesia
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Portugese - Português | Russian - Русский
Spanish - Espanol | Tagalong / Filipino
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PEOPLE GROUP PROFILE

The Siang of Indonesia

The Siang of Indonesia, numbering approximately 110,000 people, are No Longer Unreached. They are described as an ethnolinguistic community of Indonesia They are an Indigenous people, with Siang as their ethnic/kinship group and are in the Barito of Kalimantan people cluster of the Malay Peoples. Their primary religion is Animism. They primarily speak Siang.

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

Fast Facts:

Affinity Group: Malay Peoples
Country: Indonesia
People Cluster: Barito of Kalimantan
Primary Language(s): Siang (sya)
Primary Religion(s): Animism
Population: 110,000
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 5% or Greater but Less than 10% Evangelical
People Group ID: PG022591
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Pray for the Siang of Indonesia

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.

Pray Now!
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Dig Deeper (Religion):

Primary Religion: Animism
Religious Affiliation: Ethnoreligion

98%
%
Animism Adherents

Dig Deeper (Language):

Primary Language: Siang
Language Family: Austronesian

100%
%
Siang Speakers

Media Resources in Siang:

Films:

Provided by the Jesus Film Project

View all resources

Bible Resources in Siang:

Provided by Faith Comes by Hearing

Or check out the Siang 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: 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): 5% or Greater but Less than 10% Evangelical (GSEC: 5), this people group is greater than or equal to 5% evangelical

Next steps for the Siang:
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 Siang 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 Siang:
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 Siang 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 Siang:
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 Siang of Indonesia

He went to him and bound up his wounds, pouring on oil and wine. Then he set him on his own animal and brought him to an inn and took care of him
readLuke 10:34

Pray that the lost among them will experience the kind of compassion Jesus taught His followers to show others, and that they will trust in Him because He is the one who brings healing to the broken and lost.

For God so loved the world, that he gave his only Son, that whoever believes in him should not perish but have eternal life.
readJohn 3:16

Pray that the lost will seek God and learn that they have a heavenly Father who loves them and wants them to live eternally with Him.

Unless the LORD builds the house, those who build it labor in vain. Unless the LORD watches over the city, the watchman stays awake in vain.
readPsalm 127:1

Pray that as people place their faith in Christ, they will build their homes in the Lord and raise their children to know and honor Him.

And thus I make it my ambition to preach the gospel, not where Christ has already been named, lest I build on someone else's foundation, but as it is written, "Those who have never been told of him will see, and those who have never heard will understand."
readRomans 15:20-21

Pray that God will send believers to cross cultures and proclaim the gospel where Christ has not been named, so that the nations might glorify God for His mercy.

Siang Across Countries (ROP3 - 108981) 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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