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The Siar of Papua New Guinea

The Siar of Papua New Guinea, numbering approximately 4,700 people, are No Longer Unreached. They are an indigenous ethnic group of Papua New Guinea. They mostly adhere to Roman Catholicism and Siar-Lak is their primary language.

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

Fast Facts:

Affinity Group: Pacific Islander Peoples
Country: Papua New Guinea
People Cluster: New Guinea
Primary Language(s): Siar-Lak (sjr)
Primary Religion(s): Roman Catholicism
Population: 4,700
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 2% or Greater but Less than 5% Evangelical
People Group ID: PG010444
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Pray for the Siar of Papua New Guinea

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: Roman Catholicism
Religious Affiliation: Christianity

78%
%
Roman Catholicism Adherents

Dig Deeper (Language):

Primary Language: Siar-Lak
Language Family: Austronesian

100%
%
Siar-Lak Speakers

Media Resources in Siar-Lak:

Films:
TitleLink
JESUSView Film

1 film

Provided by the Jesus Film Project

View all resources

Bible Resources in Siar-Lak:

No Bible resources are listed for this language.

Provided by Faith Comes by Hearing

Or check out the Siar-Lak bible at Bible.com

Linked from YouVersion

View all resources

SPI: No longer Unreached

The Siar 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 Siar:
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 Siar of Papua New Guinea

You visit the earth and water it; you greatly enrich it; the river of God is full of water; you provide their grain, for so you have prepared it.
readPsalm 65:9

Give thanks for God's provision in nature, and pray that those who don't know Him will recognize His hand, desire to know their Creator, and hear the truth that Jesus is the solution to the world's greatest need.

Ascribe to the LORD, O families of the peoples, ascribe to the LORD glory and strength!
readPsalm 96:7

Pray that entire households will come to faith in Jesus and that God will bless their families with faith in Him for generations to come.

And how are they to preach unless they are sent? As it is written, “How beautiful are the feet of those who preach the good news!”
readRomans 10:15

Pray that as people place their faith in Christ, they will be eager to proclaim the good news of peace, knowing that the Lord has called them to this task.

O LORD, our Lord, how majestic is your name in all the earth! You have set your glory above the heavens.
readPsalm 8:1

Pray that God will raise up people who love Him and are able and willing to go to and share the hope of the gospel with those who don't know it. Pray that everyone will see His name as majestic in all the earth!

Siar Across Countries (ROP3 - 108982) reported in the following countries:

Strategic Progress Index
All

1 people group

PhotoPeople Group IDNameCountryPopulation ▼Strategic Progress IndexLanguageReligion
SiarPG010444SiarPapua New Guinea4,700No Longer UnreachedSiar-LakRoman Catholicism

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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