The Riantana of Indonesia

The Riantana of Indonesia, numbering approximately 2,200 people, are No Longer Unreached. They are an indigenous Papuan ethnolinguistic community of Yos Sudarso (Kimaam) Island in South Papua, Indonesia, speaking the Riantana language, a member of the Kolopom language family. They mostly adhere to Protestantism and Riantana is their primary language.

Photo by Google. (2026). Image generated by Gemini 3.1 Flash Lite: Riantana

Fast Facts:

Affinity Group: Pacific Islander Peoples
Country: Indonesia
People Cluster: New Guinea
Primary Language(s): Riantana (ran)
Primary Religion(s): Protestantism
Population: 2,200
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 10% or Greater Evangelical
People Group ID: PG023028
View on Joshua Project

Pray for the Riantana of Indonesia

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

53%
%
Protestantism Adherents

Dig Deeper (Language):

Primary Language: Riantana
Language Family: Kolopom

76%
%
Riantana Speakers

Media Resources in Riantana:

Films:

No film resources are listed for this language.

Bible Resources in Riantana:

No Bible resources are listed for this language.

Or check out the Riantana bible at Bible.com

Linked from YouVersion

SPI: No longer Unreached

The Riantana 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 Riantana:
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 Riantana of Indonesia

Truly, I say to you, whoever does not receive the kingdom of God like a child shall not enter it.
readMark 10:15

Pray for those who might be trapped in pride, that God will humble them and give them a childlike faith and complete dependence on Him through faith in Christ.

Moses said, "Please show me your glory." And he said, "I will make all my goodness pass before you and will proclaim before you my name 'The LORD.' And I will be gracious to whom I will be gracious, and will show mercy on whom I will show mercy."
readExodus 33:18-19

Pray that many will come to know the glory of God, which is revealed in Jesus Christ, and that they will rejoice in the mercy He offers them.

All the ends of the earth shall remember and turn to the LORD, and all the families of the nations shall worship before you.
readPsalm 22:27

Pray that all families of the nations will worship the Lord in spirit and in truth.

He restores my soul. He leads me in paths of righteousness for his name’s sake.
readPsalm 23:3

Pray for believers to go and share the gospel with others here. Ask that God will restore their souls and lead them in paths of righteousness for His name's sake.

Riantana Across Countries (ROP3 - 108372) reported in the following countries:

Strategic Progress Index
All

1 people group

To download a comprehensive people group list in spreadsheet form, visit our Research Data page.

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