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

And Samuel said to Saul, “You have done foolishly. You have not kept the command of the Lord your God, with which he commanded you."
read1 Samuel 13:13a

Pray that those who are walking in disobedience will recognize their sin and to turn to God.

Be exalted, O God, above the heavens! Let your glory be over all the earth!
readPsalm 57:11

Pray that the lost will learn about God's great love and faithfulness so that they might trust in Christ for their salvation.

Again I say to you, if two of you agree on earth about anything they ask, it will be done for them by my Father in heaven.
readMatthew 18:19

Pray that as people place their faith in Christ, they find other believers to pray with, and that they will trust God to answer their requests according to His will.

Oh, magnify the LORD with me, and let us exalt his name together!
readPsalm 34:3

Pray that God will raise up believers who will go to those in this people group who do not yet follow Jesus, and that they will invite many to magnify the Lord with them so that His fame will spread to the ends of the earth.

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.

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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