Download the People Group List (16 languages .csv)

Amharic - አማርኛ | Arabic - عربي
Bengali - বাংলা | Chinese (Simplified) - 中文（简体）
Chinese (Traditional) - 中文（繁體) | French - Français
German - Deutsch | Gujarati - ગુજરાતી
Hindi - हिन्दी | Indonesian - Bahasa Indonesia
Korean - 한국어 | Nepali - नेपाली
Portugese - Português | Russian - Русский
Spanish - Espanol | Tagalong / Filipino
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The Gresi of Indonesia

The Gresi of Indonesia, numbering approximately 4,100 people, are No Longer Unreached. They are an Indigenous Papuan people of Jayapura Regency, centered in villages west of Lake Sentani, whose traditional Gresi language is closely related to Kemtuik. They mostly adhere to Animism and Indonesian is their primary language.

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

Fast Facts:

Affinity Group: Pacific Islander Peoples
Country: Indonesia
People Cluster: New Guinea
Primary Language(s): Indonesian (ind)
Primary Religion(s): Animism
Population: 4,100
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 10% or Greater Evangelical
People Group ID: PG022920
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Pray for the Gresi 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.

Pray Now!
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Dig Deeper (Religion):

Primary Religion: Animism
Religious Affiliation: Ethnoreligion

80%
%
Animism Adherents

Dig Deeper (Language):

Primary Language: Indonesian
Language Family: Austronesian

100%
%
Indonesian Speakers

Media Resources in Indonesian:

Films:
TitleLink
JESUSView Film
JESUSView Film
MagdalenaView Film
The SaviorView Film

4 films

Provided by the Jesus Film Project

View all resources

Bible Resources in Indonesian:

Bible Name (Translation)VideoAudioText
Indonesian New Translation (formal) Version, 1974✓✓✓
Indonesian New Translation (formal) Version, 1974✓✓
Plain Indonesian Translation✓✓
Sehari-hari✓
Shellabear NT Kitab Suci Injil (Terjemahan 1912)✓✓✓
Shellabear OT Association for the Restoration of the 1912 Translation✓✓

6 entries

Provided by Faith Comes by Hearing

Or check out the Indonesian bible at Bible.com

Linked from YouVersion

View all resources

SPI: No longer Unreached

The Gresi 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 Gresi:
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 Gresi of Indonesia

I will put enmity between you and the woman, and between your offspring and her offspring; he shall bruise your head, and you shall bruise his heel.
readGenesis 3:15

Pray that those without Christ will hear the words of Genesis 1-3 in their own language, and desire to know their Creator and His provision of salvation.

The grass withers, the flower fades, but the word of our God will stand forever.
readIsaiah 40:8

Pray that everyone has access to God's Word and that those who hear the good news will turn from their sins and put their faith in Jesus the Messiah.

He will wipe away every tear from their eyes, and death shall be no more, neither shall there be mourning, nor crying, nor pain anymore, for the former things have passed away.
readRevelation 21:4

Pray that as people place their faith in Christ and walk through challenges, they will find comfort in God's promise of a beautiful future when there is no pain or suffering for those who belong to Christ.

The true light, which gives light to everyone, was coming into the world. He was in the world, and the world was made through him, yet the world did not know him.
readJohn 1:9-10

Pray for those God might send to share the gospel here. Ask that they will grow closer to Jesus and be compelled to share His good news with people who don't know it.

Gresi Across Countries (ROP3 - 103486) reported in the following countries:

Strategic Progress Index
All

1 people group

PhotoPeople Group IDNameCountryPopulation ▲Strategic Progress IndexLanguageReligion
GresiPG022920GresiIndonesia4,100No Longer UnreachedIndonesianAnimism

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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