Taranchi is a term denoting the Muslim sedentary population living in oases around the Tarim Basin in today's Xinjiang, whose native language is Turkic Karluk, and whose ancestral heritages include Iranian and populations of Tarim and the later Turkic peoples such as the Uyghurs, Karluks, Yaghmas, Chigils, Basmyls and lastly, the Mongolic tribes of the Chagatai Khanate.
The same name – which simply means 'a farmer' in Chagatai – can be extended to agrarian populations of the Ferghana Valley and oases of the entire Central Asian Turkestan. Although the Tarim Basin (with such oases as Kashgar, Kumul, Khotan and Turpan) is the agrarian Taranchis' traditional homeland, they have during the Qing period on China, migrated to regions that are now Urumqi and Ili. Many Taranchis were encouraged to settle in the Ili valley alongside sedentary Xibe garrisons and the nomadic Kyrgyz by the Qing military governors after the conquest of the Dzungars by the Chinese. In the multiethnic Muslim culture of Xinjiang, the term Taranchi is considered contradistinctive to Sart, which denotes towns dwelling traders and craftsmen. It of course excluded the ruling classes of the oases Muslim states, often called Moghol/Mughal or Dolan because of the Doglat Mongol origin of the Chagatay-Timurid dynasties. However, from a modern perspective, Taranchi, Sart and Moghol Dolans cannot be considered three distinctive ethnic groups, but rather three different classes or castes in the same cultural-linguistic zone that was Chagatay-Timurid.