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

"...And some fell into good soil and grew and yielded a hundredfold." As he said these things, he called out, "He who has ears to hear, let him hear."
readLuke 8:8

Pray that the seeds of truth will take root in the hearts of those who are far from Jesus and that He will lead them from darkness to light.

And this gospel of the kingdom will be proclaimed throughout the whole world as a testimony to all nations, and then the end will come.
readMatthew 24:14

Pray that the gospel of God's kingdom will reach more people and that they will respond in faith, becoming disciples of Jesus Christ.

For where two or three are gathered in my name, there am I among them.
readMatthew 18:20

Pray that as people place their faith in Christ, they will be encouraged as they remember that Jesus is with them when they gather in His name.

Now when they heard of the resurrection of the dead, some mocked. But others said, “We will hear you again about this.”
readActs 17:32

Ask God to give those He sends to cross cultures wisdom and discernment as they engage in spiritual conversations with those who are curious about the gospel.

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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