Download the People Group List (16 languages .csv)

Amharic - አማርኛ | Arabic - عربي
Bengali - বাংলা | Chinese (Simplified) - 中文（简体）
Chinese (Traditional) - 中文（繁體) | French - Français
German - Deutsch | Gujarati - ગુજરાતી
Hindi - हिन्दी | Indonesian - Bahasa Indonesia
Korean - 한국어 | Nepali - नेपाली
Portugese - Português | Russian - Русский
Spanish - Espanol | Tagalong / Filipino
Be sure to use the data import function in your favorite app for working with data.
If you'd like to help improve these translations, Contact Us.

PEOPLE GROUP PROFILE

The Siang of Indonesia

The Siang of Indonesia, numbering approximately 110,000 people, are No Longer Unreached. They are an ethnolinguistic community of Indonesia . They are an Indigenous people, in the Barito of Kalimantan people cluster of the Malay Peoples affinity bloc. Their primary religion is Ethnoreligion - Animism. They primarily speak Siang.

Siang in Indonesia photo
Photo courtesy of Joshua Project. Photo Source: Copyrighted ©️ 2025 Anonymous Used with permission

Fast Facts:

Affinity Group: Asian Pacific Peoples
Country: Indonesia
People Cluster: Barito of Kalimantan
Primary Language(s): Siang (sya)
Primary Religion(s): Ethnoreligion - 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

Prayer Card
Submit Updates

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!
Download Prayer Guide

Dig Deeper (Religion):

Primary Religion: Ethnoreligion - Animism
Religious Affiliation: Ethnoreligion

%
Ethnoreligion - Animism Adherents

Dig Deeper (Language):

Primary Language: Siang
Language Family: Austronesian

%
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 resources at Bible.com

Linked from YouVersion

View all resources

Next steps for the Siang

The Siang 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 Siang

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.

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 Siang

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.

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 Siang of Indonesia

Whoever makes a practice of sinning is of the devil, for the devil has been sinning from the beginning. The reason the Son of God appeared was to destroy the works of the devil.
read1 John 3:8

Pray for those living in darkness to recognize the destructive power of sin and the victory Christ has won over it.

Jesus said to them, "I am the bread of life; whoever comes to me shall not hunger, and whoever believes in me shall never thirst."
readJohn 6:35

Pray that the lost will come to Jesus and believe in Him, never to hunger or thirst again.

The LORD is good to those who wait for him, to the soul who seeks him.
readLamentations 3:25

Pray that as people place their faith in Christ, they will trust in the goodness of the Lord as they wait on Him to answer their cries for help.

In him you also, when you heard the word of truth, the gospel of your salvation, and believed in him, were sealed with the promised Holy Spirit, who is the guarantee of our inheritance until we acquire possession of it, to the praise of his glory.
readEphesians 1:13-14

Pray that God will work through believers near and far in bringing the lost to Himself, giving them what they need to do the task He has set before them, and helping them rest in Him because He has given them His Spirit.

Siang reported in the following countries (ROP3):

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.

Scroll to Top