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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

And Samuel said to Saul, “You have done foolishly. You have not kept the command of the Lord your God, with which he commanded you."
read1 Samuel 13:13a

Pray that those who are walking in disobedience will recognize their sin and to turn to God.

There is no speech, nor are there words, whose voice is not heard.
readPsalm 19:3

Pray that God will lead them to His Word, and where it is not available, ask that He will raise up those who will produce gospel media in their heart language.

I lift up my eyes to the hills. From where does my help come? My help comes from the LORD, who made heaven and earth.
readPsalm 121:1-2

Pray that as people place their faith in Christ and experience hardship, God will remind them that their help comes from the One who made heaven and earth and that He is powerful to meet their needs.

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.

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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