Lurs are an Iranian people living mainly in western and south-western Iran. Their population is estimated at around five million. They occupy Lorestan, Kohgiluyeh and Boyer-Ahmad, Khuzestan and Fars, Bushehr, Chaharmahal and Bakhtiari, Hamadan, Ilam, and Isfahan provinces.
The Lur people mostly speak the Lurish language, a Southwestern Iranian language related to Persian. According to the Encyclopaedia of Islam, the Lurish language is the closest living language to Archaic and Middle Persian. According to the linguist Don Still, Lori-Bakhtiari like Persian is derived directly from Old Persian. Michael M. Gunter states that Lurs people are closely related to the Kurds but that they "apparently began to be distinguished from the Kurds 1,000 years ago." There is also a significant population of Iraqi Lurs in the eastern and central parts of Iraq, mainly known as Feylis.