Opo is an ethnic group of South Sudan and Ethiopia. They speak Opuuo, a

Koman language The Koman languages are a small close-knit family of languages located along the Ethiopia–Sudan border with about 50,000 speakers. They are conventionally classified as part of the Nilo-Saharan family. However, due to the paucity of evidence, ...

. Most members of this ethnic group are not Muslims. The 2007 Census of Ethiopia lists 1,602 individuals as Upo (413 in the Southern Nations, Nationalities, and People's Region (SNNPR) and 990 in the Gambela Region). However, the 1994 census records 271 members of whom 224 lived in the Oromia Region (mostly in the

Mirab Shewa Zone West Shewa Zone ( om, Shawaa Lixaa/Dhihaa) is a Zones of Ethiopia, zone in Oromia Region of Ethiopia. This zone takes its name from the kingdom or former province of Shewa. West Shewa is bordered on the south by the Southwest Shewa Zone and the S ...

), 38 in the SNNPR, and less than ten in either of the other Regions closest to Sudan."The 1994 Population and Housing Census of Ethiopia"
(accessed 31 January 2009) A 2014 source placed the population at around 2,000. Most Opo adhere to Protestant Christianity though traditional beliefs are still prevalent among the community.

References

Ethnic groups in South Sudan Ethnic groups in Ethiopia {{Ethiopia-ethno-group-stub