Native toSudan, South Sudan
EthnicityUduk people
Native speakers
22,000 in the Sudans (undated; presumably after 2005)[1]
Language codes
ISO 639-3udu

Uduk, also known as Twʼampa (Tʼwampa), is a Koman language spoken in Sudan near the border with Ethiopia. Nearly the entire population fled to a refugee camp in Ethiopia during the Second Sudanese Civil War, but returned to Sudan once fighting stopped. The resurgence of hostilities in the Blue Nile province after 2011 once more resulted in the Uduk community to enter refugee camps in Ethiopia and South Sudan.[2]



Bilabial Dental Alveolar Post-alveolar Palatal Velar Glottal
Unaspirated p [t̪ʷ] t c k ʔ
Aspirated pʰʷ t̪ʰ [tʰʷ] cʰʷ kʰʷ
Ejective t̪ʼ tʼʷ cʼʷ kʼʷ
Voiced b d ɟ ɟʷ ɡ ɡʷ
Implosive ɓ ɓʷ ɗ ɗʷ
Fricatives (ɸ) s ʃ ʃʷ (x) h
Nasals m [mʷ] n ɲ [ɲʷ] ŋ ŋʷ
Lateral l
Trill r
Approximants j w
  1. Consonants in parentheses are allophones.
  2. Consonants in brackets are rare or marginal.


Front Central Back
Close i u
Mid ɛ ɔ
Open a


  1. ^ Uduk at Ethnologue (17th ed., 2013) Closed access icon
  2. ^ Killian 2015, pp. 4f