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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

Every word of God proves true; he is a shield to those who take refuge in him.
readProverbs 30:5

Pray that those who don't yet know God will trust the flawless Word of God and seek refuge in Him, finding hope and salvation instead of remaining in spiritual darkness.

For the time is coming when people will not endure sound teaching, but having itching ears they will accumulate for themselves teachers to suit their own passions, and will turn away from listening to the truth and wander off into myths.
read2 Timothy 4:3-4

Pray that the lost will be open to the truth of the gospel and turn from false teachings and myths to the sound doctrine of Christ in faith.

Therefore, if anyone is in Christ, he is a new creation. The old has passed away; behold, the new has come.
read2 Corinthians 5:17

Pray that as people place their faith in Christ, they will understand and experience the truth that in Christ, they are a new creation, and the old has gone and the new has come.

Finally, be strong in the Lord and in the strength of his might.
readEphesians 6:10

Ask God to strengthen believers with His mighty power so that as they cross cultures to share the gospel, they will stand firm against the schemes of the enemy.

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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