The Bakhtiari (Persian: بختیاری‎) are a southwestern Lurish tribe. They speak the Bakhtiari dialect, a southwestern Iranian dialect, belonging to the Luri language.
A small percentage of Bakhtiari are still nomadic pastoralists, migrating between summer quarters (sardsīr or yaylāq) and winter quarters (garmsīr or qishlāq). Numerical estimates of their total population widely vary. Bakhtiaris primarily inhabit in Chahar Mahaal and Bakhtiari and parts of the provinces of Lorestan, Khuzestan, and Isfahan. In Khuzestan, Bakhtiari tribes are primarily concentrated in the eastern part of the province.