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PEOPLE GROUP PROFILE

The Matses of Brazil

The Matses of Brazil, numbering approximately 1,600 people, are No Longer Unreached. They are an indigenous people of the Amazon basin, living primarily along the Javari River region on the border between Peru and Brazil. They are also known as Mayoruna. They are an Indigenous people in the Amazon people cluster of the Latin American and Caribbean Peoples affinity bloc. Their primary language is Matses and their primary religion is Ethnoreligion.

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

Fast Facts:

Affinity Group: Latin American and Caribbean Peoples
Country: Brazil
People Cluster: Amazon
Primary Language(s): Matses (mcf)
Primary Religion(s): Ethnoreligion
Population: 1,600
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 5% or Greater but Less than 10% Evangelical
People Group ID: PG017015
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Pray for the Matses 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

86%
%
Ethnoreligion Adherents

Dig Deeper (Language):

Primary Language: Matses
Language Family: Pano-Tacanan

100%
%
Matses Speakers

Media Resources in Matses:

Films:

Provided by the Jesus Film Project

View all resources

Bible Resources in Matses:

Provided by Faith Comes by Hearing

Or check out the Matses 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: 2), 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): Moderately Reached People Group, (LPI: 5), 6% to 20% Evangelical.
Global Status of Evangelical Christianity (GSEC): 5% or Greater but Less than 10% Evangelical (GSEC: 5), this people group is greater than or equal to 5% evangelical

Next steps for the Matses:
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

SPI: Unreached yet Engaged

The Matses 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.

Next steps for the Matses:
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

SPI: No longer Unreached

The Matses 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 Matses:
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 Matses of Brazil

Claiming to be wise, they became fools.
readRomans 1:22

Ask God to pour out His mercy and bring those who are walking in their own wisdom to faith in Jesus.

Sing praises to God, sing praises! Sing praises to our King, sing praises!
readPsalm 47:6

Pray that believers will have a heart to invite others to trust in Christ alone so that they might sing praises to His name.

"...I will build my church, and the gates of hell shall not prevail against it."
readMatthew 16:18b

Pray that God will build and grow His Church among this people.

For I am not ashamed of the gospel, for it is the power of God for salvation to everyone who believes, to the Jew first and also to the Greek.
readRomans 1:16

Pray that God will raise up sons and daughters who, like Paul, will be bold to share the gospel across cultural barriers so that many might receive salvation.

Matses Across Countries (ROP3 - 106444) 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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