Fergana Kipchak, also Kuman, Qomanian, or Kipchak Uzbek, is a Turkic language which formed in Central Asia in the middle of the 8th century after it detached itself from the East Kipchak language (the South Altay language is considered to have separated earlier). Other East Kipchak dialects gave rise to the modern Kyrgyz language. In some regions of Ferghana province the features of Kipchak are seen, especially in Phonetics. These regions (uzbek tuman) are Baghdad, Buvayda, Uchko'prik and some parts of neighboring regions. Many idioms spoken in Uzbekistan that are nowadays regarded part of the Kyrgyz language are in fact Fergana Kipchak dialects. According to the E. D. Polivanov, the Fergana Kipchak language existed as a separate idiom as late as in the 1920s. According to A. N. Samoilovich’s latest research, some descendants of Fergana Kipchaks identify themselves as a separate ethnic group independent from the Uzbeks, Kazakhs or the Kyrgyz, although closely related to the latter.
Some modern Fergana Kipchak dialects seem to be closely related to the Kipchak–Nogay group of the Turkic languages.