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The Uncontacted of Madeirinha of Brazil

The Uncontacted of Madeirinha of Brazil, numbering approximately 25 people, are Unengaged and Unreached. They are an uncontacted Indigenous people of the Madeirinha region of the Brazilian Amazon who live in voluntary isolation and are known primarily through protection and monitoring efforts rather than direct ethnographic contact. They mostly adhere to Ethnoreligion and Undetermined is their primary language.

Photo by Google. (2026). Image generated by Gemini 3.1 Flash-Lite: Uncontacted of Madeirinha

Fast Facts:

Affinity Group: Latin American and Caribbean Peoples
Country: Brazil
People Cluster: Amazon
Primary Language(s): Undetermined (und)
Primary Religion(s): Ethnoreligion
Population: 25
Strategic Progress Index (SPI): Unengaged and Unreached
Global Status of Evangelical Christianity (GSEC): No Evangelicals, Churches or Resources
People Group ID: PG047161

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Pray for the Uncontacted of Madeirinha of Brazil

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: Ethnoreligion
Religious Affiliation: Ethnoreligion

—
%
Ethnoreligion Adherents

Dig Deeper (Language):

Primary Language: Undetermined
Language Family:

—
%
Undetermined Speakers

Media Resources in Undetermined:

Films:

No film resources are listed for this language.

Provided by the Jesus Film Project

View all resources

Bible Resources in Undetermined:

No Bible resources are listed for this language.

Provided by Faith Comes by Hearing

Or check out the Undetermined bible at Bible.com

Linked from YouVersion

View all resources

Explore Lostness and Next Steps

Unengaged and Unreached

Strategic Priority Index (SPI): Unengaged and Unreached (SPI: 0), 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.
Lostness Priority Index (LPI): Frontier Unreached People Group, (LPI: 0), < 0.1% Evangelical.
Global Status of Evangelical Christianity (GSEC): No Evangelicals, Churches or Resources (GSEC: 0), there are no evangelical Christians or churches among this people group and there is no access to evangelical print, audio, visual or human resources

Next steps for the Uncontacted of Madeirinha:
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

Pray specifically for the Uncontacted of Madeirinha of Brazil

But your iniquities have made a separation between you and your God, and your sins have hidden his face from you so that he does not hear.
readIsaiah 59:2

Pray that those who are separated from God will turn to Him in humility and repentance, seeking His forgiveness and the restoration of a right relationship with their Heavenly Father.

How then will they call on him in whom they have not believed? And how are they to believe in him of whom they have never heard? And how are they to hear without someone preaching?
readRomans 10:14

Pray that the gospel will advance among those who don’t know the good news of salvation in Jesus so that they might believe and trust in Jesus.

Let us hold fast the confession of our hope without wavering, for he who promised is faithful.
readHebrews 10:23

Pray that as people place their faith in Christ, they will cling tightly to the hope they have in God to faithfully keep His promises.

And Jesus said to them, "Follow me, and I will make you become fishers of men." And immediately they left their nets and followed him.
readMark 1:17-18

Pray that God will raise up believers from this place and/or other cultures nearby to proclaim the gospel to those who desperately need to encounter it.

Uncontacted of Madeirinha Across Countries (ROP3 - 116068) reported in the following countries:

Strategic Progress Index
All

1 people group

PhotoPeople Group ID ▼NameCountryPopulationStrategic Progress IndexLanguageReligion
Uncontacted of MadeirinhaPG047161Uncontacted of MadeirinhaBrazil25Unengaged and UnreachedUndeterminedEthnoreligion

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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