Tegin (aka tigin, tiğin, Pinyin: teqin, tiin Chinese: 特勤, erroneously tèlè 鐵勒 ) is a Turkic title, commonly attachable to the names of the junior members of the Khan family.
History records many people carrying the title Tegin, from those noted incidentally to those heading their own states. The best known are Kul Tigin (闕特勤; Queteqin, erroneously 闕特勒; Quētèlè), noted for the stele in his memory in the Orkhon inscriptions; Alp-Tegin, founder of the Ghazni state, which grew into the Ghaznavid Empire; Arslan Tegin and Bughra Tegin, both instrumental in the creation of the Kara-Khanid Kaganate. The Chinese History of the Northern Dynasties states that the Hephthalite emperor of the Gandhara state was from a ruling clan of the neighboring Tegin state. With time, the title tegin became a popular personal name, and now perseveres both as personal and family name, predominantly in the South Asia and Middle East areas.