Birri (Bviri) is a nearly extinct, possibly Central Sudanic language^[2] of CAR and South Sudan. According to Boyeldieu (2010), its classification as Central Sudanic has yet to be demonstrated,^[3] but Starostin (2016) finds its closest relative to be Kresh.

There are two main varieties of Birri, Mboto and Munga. In 1911, a few thousand people were reported in Rafaï, Central African Republic, with a marginal population further to the east in Obo. Stefano Santandrea (1966) wrote a lexicon and grammatical sketch of the Mboto dialect in Deim Zubeir, South Sudan.^[4] The birri were not included in the maps of the old travelers. Schweinfurths's(1870-72), Potago's(1876-77) Buchta's. Birri name was included for the first time in Junker- Casati's map, drawn by F.Gessi, the son of the famous Pascha,Ramolo(1880-88). De Calonne-Beaufaict in "Azande" (Published in 1921) put the Birri in at the same place, as does in the British War Office map 1933, the spelling is seen as "Biri".