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The Diodio of Papua New Guinea

The Diodio of Papua New Guinea, numbering approximately 4,300 people, are No Longer Unreached. They are an indigenous ethnic group of Papua New Guinea. They mostly adhere to Protestantism and West Goodenough is their primary language.

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

Fast Facts:

Affinity Group: Pacific Islander Peoples
Country: Papua New Guinea
People Cluster: New Guinea
Primary Language(s): West Goodenough (ddi)
Primary Religion(s): Protestantism
Population: 4,300
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 10% or Greater Evangelical
People Group ID: PG009863
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Pray for the Diodio 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: Protestantism
Religious Affiliation: Christianity

45%
%
Protestantism Adherents

Dig Deeper (Language):

Primary Language: West Goodenough
Language Family: Austronesian

100%
%
Goodenough, West Speakers

Media Resources in West Goodenough:

Films:

No film resources are listed for this language.

Provided by the Jesus Film Project

View all resources

Bible Resources in West Goodenough:

No Bible resources are listed for this language.

Provided by Faith Comes by Hearing

Or check out the West Goodenough bible at Bible.com

Linked from YouVersion

View all resources

SPI: No longer Unreached

The Diodio 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 Diodio:
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 Diodio of Papua New Guinea

Let the nations be glad and sing for joy, for you judge the peoples with equity and guide the nations upon earth.
readPsalm 67:4

Pray that those who are lost in darkness and confusion will come to understand God's ways, submit to His righteous rule, and experience the joy of His salvation.

All the earth worships you and sings praises to you; they sing praises to your name.
readPsalm 66:4

Pray that the good news of Jesus will advance here and that many will bow down and sing praises to His name.

But he was pierced for our transgressions; he was crushed for our iniquities; upon him was the chastisement that brought us peace, and with his wounds we are healed.
readIsaiah 53:5

Pray that as people place their faith in Christ, they will find comfort and spiritual healing as they remember the wounds of Christ, who understands their suffering because He also walked through suffering on their behalf.

Behold, I am doing a new thing; now it springs forth, do you not perceive it? I will make a way in the wilderness and rivers in the desert.
readIsaiah 43:19

Praise the God who is able to make a way forward, even when it seems impossible. Ask Him to do a new thing among this people group specifically and among the nations, raising up believers to go and share the gospel with individuals and places where it has not flourished before.

Diodio Across Countries (ROP3 - 102623) reported in the following countries:

Strategic Progress Index
All

1 people group

PhotoPeople Group IDNameCountryPopulationStrategic Progress IndexLanguageReligion ▼
DiodioPG009863DiodioPapua New Guinea4,300No Longer UnreachedWest GoodenoughProtestantism

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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