The Siriono of Bolivia

The Siriono of Bolivia, numbering approximately 1,100 people, are No Longer Unreached. They are described as an ethnolinguistic community of Bolivia They are an Indigenous people, with Siriono as their ethnic/kinship group and are in the Guarani people cluster of the Latin American and Caribbean Peoples. Their primary religion is Ethnoreligion. They primarily speak Sirionó.

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

Fast Facts:

Affinity Group: Latin American and Caribbean Peoples
Country: Bolivia
People Cluster: Guarani
Primary Language(s): Sirionó (srq)
Primary Religion(s): Ethnoreligion
Population: 1,100
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 2% or Greater but Less than 5% Evangelical
People Group ID: PG017423
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Pray for the Siriono of Bolivia

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Dig Deeper (Religion):

Primary Religion: Ethnoreligion
Religious Affiliation: Ethnoreligion

%
Ethnoreligion Adherents

Dig Deeper (Language):

Primary Language: Sirionó
Language Family: Tupian

20%
%
Sirionó Speakers

Media Resources in Sirionó:

Films:

No entries found for: Sirionó(srq). Help build some!

Bible Resources in Sirionó:

Or check out the Sirionó bible at Bible.com

Linked from YouVersion

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): Marginally Reached People Group, (LPI: 4), 3% to 6% Evangelical.
Global Status of Evangelical Christianity (GSEC): 2% or Greater but Less than 5% Evangelical (GSEC: 4), this people group is greater than or equal to 2% evangelical

Next steps for the Siriono:
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 Siriono 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 Siriono:
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 Siriono 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 Siriono:
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 Siriono of Bolivia

But Jesus said, "Let the little children come to me and do not hinder them, for to such belongs the kingdom of heaven"
readMatthew 9:14

Pray that those who are spiritually dead will recognize their need for spiritual nourishment and turn to the One who offers true fulfillment.

Oh, taste and see that the LORD is good! Blessed is the man who takes refuge in him!
readPsalm 34:8

Pray that the gospel will advance and that many will have the opportunity to taste and see the goodness of God and entrust their lives to Him.

If any of you lacks wisdom, let him ask God, who gives generously to all without reproach, and it will be given him.
readJames 1:5

Pray that as people place their faith in Christ, they will ask God for wisdom when they lack it, trusting that He will generously give it to them.

The Lord is not slow to fulfill his promise as some count slowness, but is patient toward you, not wishing that any should perish, but that all should reach repentance.
read2 Peter 3:9

Pray that those God sends to cross cultures will patiently endure hardships as they share the gospel, knowing that the Lord is not slow to fulfill His promise.

Siriono Across Countries (ROP3 - 109331) reported in the following countries:

To download a comprehensive people group list in spreadsheet form, visit our Research Data page.

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