The Osing of Indonesia

The Osing of Indonesia, numbering approximately 433,000 people, are Engaged yet Unreached. They are an ethnolinguistic community of Indonesia. They are an Indigenous people, in the Jawa people cluster of the Malay Peoples affinity bloc. Their primary religion is Islam - Sunni. They primarily speak Javanese.

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

Fast Facts:

Affinity Group: Asian Pacific Rim Peoples
Country: Indonesia
People Cluster: Jawa
Primary Language(s): Javanese (jav)
Primary Religion(s): Islam - Sunni
Population: 433,000
Strategic Progress Index (SPI): Engaged yet Unreached
Global Status of Evangelical Christianity (GSEC): Less than 2% Evangelical, No Active CP Activity
People Group ID: PG022430
View on Joshua Project

Pray for the Osing 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: Islam - Sunni
Religious Affiliation: Islam

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Dig Deeper (Language):

Primary Language: Javanese
Language Family: Austronesian

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Media Resources in Javanese:

Films:

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Bible Resources in Javanese:

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Or check out the Javanese bible resources at Bible.com

Linked from YouVersion

Next steps for the Osing

The Osing are Unengaged and Unreached, 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.

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

Next steps for the Osing

The Osing 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.

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

Next steps for the Osing

The Osing 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.

Empower local believers to begin praying for their own people
Continue gospel seed sowing and church planting among this group
Encourage local leaders to being leading church planting strategy and looking for Unreached and Unengaged groups nearby

Pray specifically for the Osing of Indonesia

For if while we were enemies we were reconciled to God by the death of his Son, much more, now that we are reconciled, shall we be saved by his life.
readRomans 5:10

Pray that any who may be enemies of God will grasp the depth of God's love demonstrated through Christ's death for the ungodly, and be reconciled to Him.

Ascribe to the LORD, O families of the peoples, ascribe to the LORD glory and strength!
readPsalm 96:7

Pray that entire households will come to faith in Jesus and that God will bless their families with faith in Him for generations to come.

Finally, all of you, have unity of mind, sympathy, brotherly love, a tender heart, and a humble mind.
read1 Peter 3:8

Pray that as people place their faith in Christ, they will live in harmony with one another, showing sympathy, love, compassion, and humility.

For great is the Lord, and greatly to be praised; he is to be feared above all gods.
readPsalm 96:4

Pray that God will raise up believers to declare His glory among the lost, so that they may know that He is great and greatly to be praised, that He is exalted above all gods.

Java Osing (ROP3 - 101020) 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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