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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

The LORD has heard my plea; the LORD accepts my prayer.
readPsalm 6:9

Pray that lost people will hear the gospel and place their faith in Christ, knowing that He hears their plea and accepts their prayer.

“Worthy are you, our Lord and God, to receive glory and honor and power, for you created all things, and by your will they existed and were created.”
readRevelation 4:11

Pray that the good news will advance and people will recognize and worship the One who created all things by His will, giving glory and honor to Him alone.

So you also must consider yourselves dead to sin and alive to God in Christ Jesus.
readRomans 6:11

Pray that as people place their faith in Christ, they will lay down all evil desires, dying to sin and living for Him alone.

To the Jews I became as a Jew, in order to win Jews. To those under the law I became as one under the law (though not being myself under the law) that I might win those under the law.
read1 Corinthians 9:20

Pray that believers from similar cultures will be compelled by Christ's love to reach people who don't know the gospel, and that those people will receive the good news with joy.

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

Strategic Progress Index
All

1 people group

PhotoPeople Group IDName ▼CountryPopulationStrategic 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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