Semimi, Etna Bay in Indonesia

The Semimi, Etna Bay have only been reported in Indonesia
Population
Main Language
Largest Religion
Christian
Evangelical
Progress
Progress Gauge

Introduction / History

The Semimi people of Etna Bay live in the Bird's Neck region of West Papua, Indonesia. Their language, Semimi, belongs to the Mairasi (Etna Bay) language family, a small Papuan family distinct from the larger Trans–New Guinea grouping.

Historically, the Semimi have been semi-isolated due to the geography of Etna Bay, with dense forests and coastal waters shaping their settlement patterns. Their culture is closely tied to subsistence living, and oral traditions preserve clan histories and connections to the land. Contact with outsiders has been limited, though missionary and linguistic survey efforts have occurred since the mid-20th century SIL International.


What Are Their Lives Like?

The Semimi live in small villages along Etna Bay, relying on fishing, hunting, and sago cultivation for daily sustenance. Their homes are typically simple structures adapted to the humid coastal environment. Community life revolves around kinship ties, with elders guiding decisions and rituals. While modernization has reached parts of Papua, the Semimi remain largely rural, with limited access to healthcare, education, and infrastructure. Their language is still spoken in daily life, though pressures from Indonesian influence and regional trade are gradually introducing bilingualism.


What Are Their Beliefs?

The largest religion among the Semimi is Christianity, though evangelical presence is relatively small. Many Semimi identify nominally as Christian, but traditional animistic practices remain influential. Animism emphasizes spirits in nature, ancestors, and rituals for protection and prosperity.

Syncretism is common, with Christian identity coexisting alongside traditional beliefs. Ministry resources are scarce: there are no audio recordings, no JESUS Film, and limited Scripture availability in Semimi. This lack of resources hinders deeper discipleship and understanding of the gospel.


What Are Their Needs?

The Semimi people need greater access to Scripture in their heart language, as current resources are minimal. They also need discipleship and training for local believers, so that Christianity can grow authentically within their cultural context. Practical needs include education, healthcare, and sustainable development projects, which would improve quality of life while supporting spiritual growth. Finally, they need missionary presence that is culturally sensitive, helping bridge the gap between nominal Christianity and genuine faith.


Prayer Items

Pray for the translation and distribution of the Bible in Semimi, so that the people can understand God's word clearly.
Pray asking God to strengthen the small evangelical presence, raising up leaders who can faithfully disciple others.
Pray for openness among those who still practice animism, that they may see Christ as Lord over creation.
Pray for missionaries and Christian workers in Etna Bay, that they would have wisdom, perseverance, and cultural sensitivity in sharing the gospel.


Scripture Prayers for the Semimi, Etna Bay in Indonesia.


References

Wikipedia – Mairasi languages (Etna Bay family)
SIL International – Etna Bay Survey Report
New Guinea World – Etna Bay (Mairasi family classification)


Profile Source:   Joshua Project  

People Name General Semimi
People Name in Country Semimi, Etna Bay
Alternate Names Etna Bay
Population this Country 1,500
Population all Countries 1,500
Total Countries 1
Indigenous Yes
Progress Scale Progress Gauge
Unreached No
Frontier People Group No
GSEC 6  (per PeopleGroups.org)
Pioneer Workers Needed
PeopleID3 14844
ROP3 Code 108826
Country Indonesia
Region Asia, Southeast
Continent Asia
10/40 Window Yes
National Bible Society Website
Persecution Rank Not ranked
Location in Country Papua Barat Province, Kaimana regency, Bomberai peninsula from Tarera bay west and north, southwest end at Triton bay and interior to northwest near Lacmora and Aiwasa lakes; Papua Timur Province, Nabire regency, far west, border area west of Lake Jamur.   Source:  Ethnologue 2016
Country Indonesia
Region Asia, Southeast
Continent Asia
10/40 Window Yes
National Bible Society Website
Persecution Rank Not ranked
Location in Country Papua Barat Province, Kaimana regency, Bomberai peninsula from Tarera bay west and north, southwest end at Triton bay and interior to northwest near Lacmora and Aiwasa lakes; Papua Timur Province, Nabire regency, far west, border area west of Lake Jamur..   Source:  Ethnologue 2016

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Ethnolinguistic map or other map

Primary Religion: Christianity
Major Religion Estimated Percent
Buddhism
0.00 %
Christianity
65.00 %
Ethnic Religions
35.00 %
Hinduism
0.00 %
Islam
0.00 %
Non-Religious
0.00 %
Other / Small
0.00 %
Unknown
0.00 %
Primary Language Semimi (1,500 speakers)
Language Code etz   Ethnologue Listing
Written / Published Unknown
Total Languages 1
Primary Language Semimi (1,500 speakers)
Language Code etz   Ethnologue Listing
Total Languages 1
People Groups Speaking Semimi

Primary Language:  Semimi

Bible Translation Status:  Unspecified

Resource Type Resource Name Source
None reported  
Profile Source Joshua Project 
Data Sources Data is compiled from various sources. Learn more.