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PEOPLE GROUP PROFILE

The Wiaki of Papua New Guinea

The Wiaki of Papua New Guinea, numbering approximately 1,600 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 Tok Pisin and their primary religion is Roman Catholicism.

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

Fast Facts:

Affinity Group: Pacific Islander Peoples
Country: Papua New Guinea
People Cluster: New Guinea
Primary Language(s): Tok Pisin (tpi)
Primary Religion(s): Roman Catholicism
Population: 1,600
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 5% or Greater but Less than 10% Evangelical
People Group ID: PG010622
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Pray for the Wiaki 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

85%
%
Roman Catholicism Adherents

Dig Deeper (Language):

Primary Language: Tok Pisin
Language Family: Indo-European

100%
%
Tok Pisin Speakers

Media Resources in Tok Pisin:

Films:

Provided by the Jesus Film Project

View all resources

Bible Resources in Tok Pisin:

Provided by Faith Comes by Hearing

Or check out the Tok Pisin bible at Bible.com

Linked from YouVersion

View all resources

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): Marginally Reached People Group, (LPI: 4), 3% to 6% 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 Wiaki:
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 Wiaki 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 Wiaki:
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 Wiaki 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 Wiaki:
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 Wiaki of Papua New Guinea

For the LORD knows the way of the righteous, but the way of the wicked will perish.
readPsalm 1:6

As many look for hope in worldly pleasures, pray they will hear and accept salvation through Christ, turn from destruction, and experience joy in the way of righteousness.

Greet also the church in their house. Greet my beloved Epaenetus, who was the first convert to Christ in Asia."
readRomans 16:5

Pray for houses to be meeting places for Christians and that God will advance the gospel and grow His Church through natural familial and community relationships.

Fear not, for I am with you; be not dismayed, for I am your God; I will strengthen you, I will help you, I will uphold you with my righteous right hand.
readIsaiah 41:10

Pray that as people place their faith in Christ, they will not fear, for the Lord is with them, and He will strengthen, help, and uphold them with His righteous right hand.

Therefore take up the whole armor of God, that you may be able to withstand in the evil day, and having done all, to stand firm.
readEphesians 6:13

Pray that God will send believers to the lost of this people group and that, as they share the gospel, they will take up the whole armor of God so that they can stand firm when trials come.

Wiaki Across Countries (ROP3 - 110823) 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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