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PEOPLE GROUP PROFILE

The Sio of Papua New Guinea

The Sio of Papua New Guinea, numbering approximately 10,500 people, are No Longer Unreached. They are an indigenous ethnic group of Papua New Guinea. They are an Indigenous people, in the New Guinea people cluster of the Pacific Islander Peoples affinity bloc. Their primary religion is Christianity - Protestantism. They primarily speak Sio.

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

Fast Facts:

Affinity Group: Asian Pacific Rim Peoples
Country: Papua New Guinea
People Cluster: New Guinea
Primary Language(s): Sio (xsi)
Primary Religion(s): Christianity - Protestantism
Population: 10,500
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 2% or Greater but Less than 5% Evangelical
People Group ID: PG010462
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Pray for the Sio 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.

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Dig Deeper (Religion):

Primary Religion: Christianity - Protestantism
Religious Affiliation: Christianity

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Dig Deeper (Language):

Primary Language: Sio
Language Family: Austronesian

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Media Resources in Sio:

Films:

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Bible Resources in Sio:

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Provided by Faith Comes by Hearing

Or check out the Sio bible resources at Bible.com

Linked from YouVersion

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Next steps for the Sio

The Sio 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 Sio

The Sio 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 Sio

The Sio 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 Sio of Papua New Guinea

And the people of Israel went into the midst of the sea on dry ground, the waters being a wall to them on their right hand and on their left.
readExodus 14:22

Pray that the God who split the sea so that the Israelites might pass through would do another great work among these people, softening the hearts of those who remain lost to the good news and saving them from their sins.

Oh, taste and see that the LORD is good! Blessed is the man who takes refuge in him!
readPsalm 34:8

Pray that the gospel will advance and that many will have the opportunity to taste and see the goodness of God and entrust their lives to Him.

As for you, you meant evil against me, but God meant it for good, to bring it about that many people should be kept alive, as they are today.
readGenesis 50:20

Pray that as people place their faith in Christ, they will forgive those who do them harm and trust God as they walk in His ways.

But to all who did receive him, who believed in his name, he gave the right to become children of God.
readJohn 1:12

Pray that believers will have the opportunity to clearly share the good news with the lost here, so that all people can be invited to trust in Jesus and become children of God.

Sio (ROP3 - 109318) 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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