Kurds (Kurdish: کورد ,Kurd‎) or Kurdish people are an Iranian ethnic group native to a mountainous region of Western Asia known as Kurdistan, which spans southeastern Turkey, northwestern Iran, northern Iraq, and northern Syria. There are exclaves of Kurds in Central Anatolia, Khorasan, and the Caucasus, as well as significant Kurdish diaspora communities in the cities of western Turkey (in particular Istanbul) and Western Europe (primarily in Germany). The Kurdish population is estimated to be between 30 and 45 million.