The Mursi (or Mun as they refer to themselves) are a Surmic ethnic group in Ethiopia. They principally reside in the Debub Omo Zone of the Southern Nations, Nationalities, and People's Region, close to the border with South Sudan. According to the 2007 national census, there are 11,500 Mursi, 848 of whom live in urban areas; of the total number, 92.25% live in the Southern Nations, Nationalities, and People's Region (SNNPR).
Surrounded by mountains between the Omo River and its tributary the Mago, the home of the Mursi is one of the most isolated regions of the country. Their neighbors include the Aari, the Banna, the Mekan, the Karo, the Kwegu, the Nyangatom and the Suri. They are grouped together with the Me'en and Suri by the Ethiopian government under the name Surma.
The Mursi speak the Mursi language as a mother tongue. It is a part of the Surmic language family. Mursi is closely related (over 80% cognate) to Me'en and Suri, as well as Kwegu. According to the 1994 national census, there were 3,163 people who were identified as Mursi in the SNNPR; 3,158 spoke Mursi as their first language, while 31 spoke it as their second language. According to the analytical volume of the 1994 national census, where Mursi was grouped under Me'en, 89.7% were monolingual, and the second languages spoken were Bench (4.2%), Amharic, which serves as one of the six official languages of Ethiopia. (3.5%), and Kafa (1.1%).
Two orthographies for the Mursi language exist. One is the Amharic-based, although the Mursi language is one of the Surmic languages with incompatible vowel structures and stressed and unstressed consonants compared to Amharic. The second is the more suitable Latin-based alphabet. The Latin-based orthography was developed by David Turton and Moges Yigezu of Addis Ababa University.
Like many agro-pastoralists in East Africa, the Mursi believe that they experience a force greater than themselves, which they call Tumwi. This is usually located in the Sky, although sometimes Tumwi manifests itself as a thing of the sky (ahi a tumwin), such as a rainbow or a bird.