The Siane of Papua New Guinea

The Siane of Papua New Guinea, numbering approximately 42,500 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 language is Siane and their primary religion is Protestantism.

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

Fast Facts:

Affinity Group: Pacific Islander Peoples
Country: Papua New Guinea
People Cluster: New Guinea
Primary Language(s): Siane (snp)
Primary Religion(s): Protestantism
Population: 42,500
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 5% or Greater but Less than 10% Evangelical
People Group ID: PG010443
View on Joshua Project

Pray for the Siane 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.

Dig Deeper (Religion):

Primary Religion: Protestantism
Religious Affiliation: Christianity

50%
%

Dig Deeper (Language):

Primary Language: Siane
Language Family: Nuclear Trans New Guinea

100%
%

Media Resources in Siane:

Films:

No language code (ROL) found for this post.

Bible Resources in Siane:

The filter value is not set for this post.

Or check out the Siane bible at Bible.com

Linked from YouVersion

Explore Lostness and Next Steps

Unengaged and Unreached

Strategic Priority Index (SPI): Unengaged and Unreached (SPI: 2), 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.
Lostness Priority Index (LPI): Moderately Reached People Group, (LPI: 5), 6% to 20% Evangelical.
Global Status of Evangelical Christianity (GSEC): 5% or Greater but Less than 10% Evangelical (GSEC: 5), this people group is greater than or equal to 5% evangelical

Next steps for the Siane:
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

SPI: Unreached yet Engaged

The Siane 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.

Next steps for the Siane:
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

SPI: No longer Unreached

The Siane 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 Siane:
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 Siane of Papua New Guinea

When he saw the crowds, he had compassion for them, because they were harassed and helpless, like sheep without a shepherd.
readMatthew 9:36

Pray that those who have no hope and are in need of a Savior will be comforted by the Good Shepherd, who seeks to gather the lost and weary into His care.

...And that repentance for the forgiveness of sins should be proclaimed in his name to all nations, beginning from Jerusalem.
readLuke 24:47

Pray that the message of repentance and forgiveness through Jesus will reach everyone.

And now, Lord, look upon their threats and grant to your servants to continue to speak your word with all boldness.
readActs 4:29

Pray that as people place their faith in Christ and face rejection by unbelievers in their communities, God will give them discernment, boldness, and encouragement to speak His Word.

But you will receive power when the Holy Spirit has come upon you, and you will be my witnesses in Jerusalem and in all Judea and Samaria, and to the end of the earth.
readActs 1:8

Pray that God will raise up believers who are willing to cross cultures and boldly share the good news of Jesus with the lost in this people group and from every nation.

Siane Across Countries (ROP3 - 108980) 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.

Scroll to Top