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The Tanda Mayo of Guinea

The Tanda Mayo of Guinea, numbering approximately 2,400 people, are Engaged yet Unreached. They are one of several ethnic groups related to the Tenda (Tanda) in eastern Senegal, Guinea, and Guinea-Bissau. They mostly adhere to Folk Islam and Bassari is their primary language.

Photo by Google. (2026). Image generated by Gemini 3.1 Flash-Lite: Tanda Mayo

Fast Facts:

Affinity Group: Sub-Saharan African Peoples
Country: Guinea
People Cluster: Atlantic
Primary Language(s): Bassari (bsc)
Primary Religion(s): Folk Islam
Population: 2,400
Strategic Progress Index (SPI): Engaged yet Unreached
Global Status of Evangelical Christianity (GSEC): Less than 2% Evangelical, No Recent CP Activity
People Group ID: PG025082

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Pray for the Tanda Mayo of Guinea

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.

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Dig Deeper (Religion):

Primary Religion: Folk Islam
Religious Affiliation: Islam

80%
%
Folk Islam Adherents

Dig Deeper (Language):

Primary Language: Bassari
Language Family: Atlantic-Congo

100%
%
Oniyan Speakers

Media Resources in Bassari:

Films:
TitleLink
JESUSView Film

1 film

Provided by the Jesus Film Project

View all resources

Bible Resources in Bassari:

Bible Name (Translation)VideoAudioText
2016 Ligue Biblique Internationale✓✓✓

1 entry

Provided by Faith Comes by Hearing

Or check out the Bassari bible at Bible.com

Linked from YouVersion

View all resources

SPI: Unreached yet Engaged

The Tanda Mayo 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 Tanda Mayo:
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

Pray specifically for the Tanda Mayo of Guinea

For by grace you have been saved through faith. And this is not your own doing; it is the gift of God, not a result of works, so that no one may boast.
readEphesians 2:8-9

Pray that the lost among them will receive the gift of salvation by grace through faith, not by works, and be created for good works.

Behold, I am doing a new thing; now it springs forth, do you not perceive it? I will make a way in the wilderness and rivers in the desert.
readIsaiah 43:19

Pray that the lost will see the new thing God can do in their lives and trust in His plan and purpose for them.

Remember the wondrous works that he has done, his miracles, and the judgments he uttered.
readPsalm 105:5

Pray that as people place their faith in Christ, they will rejoice as they remember His wonders, miracles, and perfect judgements.

And thus I make it my ambition to preach the gospel, not where Christ has already been named, lest I build on someone else's foundation, but as it is written, "Those who have never been told of him will see, and those who have never heard will understand."
readRomans 15:20-21

Pray that God will send believers to cross cultures and proclaim the gospel where Christ has not been named, so that the nations might glorify God for His mercy.

Tanda-Mayo Across Countries (ROP3 - 111218) reported in the following countries:

Strategic Progress Index
All

1 people group

PhotoPeople Group IDNameCountryPopulation ▼Strategic Progress IndexLanguageReligion
Tanda MayoPG025082Tanda MayoGuinea2,400Engaged yet UnreachedBassariFolk Islam

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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