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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

And Jesus came and said to them, “All authority in heaven and on earth has been given to me. Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, teaching them to observe all that I have commanded you. And behold, I am with you always, to the end of the age.”
readMatthew 28:16-20

Pray that those who don't yet know Him will encounter the risen Savior and be transformed by the power of His resurrection, becoming disciples who make disciples.

I saw in the night visions, and behold, with the clouds of heaven there came one like a son of man, and he came to the Ancient of Days and was presented before him. And to him was given dominion and glory and a kingdom, that all peoples, nations, and languages should serve him; his dominion is an everlasting dominion, which shall not pass away, and his kingdom one that shall not be destroyed.
readDaniel 7:13-14

Pray that the gospel will advance so that all peoples will come to know the Son of Man, who has been given dominion and glory and a kingdom, and that they will bow before Him and serve Him forever.

I give them eternal life, and they will never perish, and no one will snatch them out of my hand.
readJohn 10:28

Pray that as people place their faith in Christ, they will have assurance of eternal life, knowing that no one can snatch them out of the loving hand of Jesus.

To the weak I became weak, that I might win the weak. I have become all things to all people, that by all means I might save some.
read1 Corinthians 9:22

Ask God to raise up believers from around the world to go and share the hope of Jesus with the lost so that they might trust in Him and have the hope of eternal life.

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

Strategic Progress Index
All

1 people group

PhotoPeople Group ID ▼NameCountryPopulationStrategic 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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