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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

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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

Put to death therefore what is earthly in you: sexual immorality, impurity, passion, evil desire, and covetousness, which is idolatry. On account of these the wrath of God is coming.
readColossians 3:5-6

Pray for God to have mercy and give those who don't yet know Him the gift of Jesus and His salvation for all who call upon His name.

For God so loved the world, that he gave his only Son, that whoever believes in him should not perish but have eternal life.
readJohn 3:16

Pray that the lost will seek God and learn that they have a heavenly Father who loves them and wants them to live eternally with Him.

Walk in wisdom toward outsiders, making the best use of the time.
readColossians 4:5

Pray that as people place their faith in Christ, they will be wise in the way they walk with the lost and manage their time and other resources in a way that honors God.

Beloved, I pray that all may go well with you and that you may be in good health, as it goes well with your soul.
read3 John 1:2

Ask God to grant protection and good health — both physical and spiritual — to those He sends cross-culturally to share the gospel.

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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