Yazidis or Yezidis (jəˈzi:di:z; ئێزیدی) are a Kurdish-speaking endogamous religious group who are indigenous to Kurdistan, a geographical region in Western Asia that includes parts of Iraq, Syria, Turkey and Iran. The majority of Yazidis remaining in the Middle East today live in Iraq, primarily in the governorates of Nineveh and Duhok.
There is a disagreement among scholars and in Yazidi circles on whether the Yazidi people are a distinct ethnoreligious group or a religious sub-group of the Kurds, an Iranic ethnic group. Yazidism is the ethnic religion of the Yazidi people and is monotheistic in nature, having roots in a pre-Zoroastrian Iranic faith.
Since the spread of Islam began with the early Muslim conquests of the 7th–8th centuries, Yazidis have faced persecution by Arabs and later by Turks, as their religious practices have commonly been charged with heresy by Muslim clerics. Most recently, the 2014 Yazidi genocide that was carried out by the Islamic State saw over 5,000 Yazidis killed and thousands of Yazidi women and girls forced into sexual slavery, as well as the flight of more than 500,000 Yazidi refugees.
The Yazidis' own name for themselves is Êzidî or, in some areas, Dasinî, although the latter, strictly speaking, is a tribal name. Some western scholars derive the name from the Umayyad Caliph Yazīd ibn Muʿāwiya (Yazid I). However, all Yazidis reject any relationship between their name and the caliph. The word Yazidi means 'the servant of the creator'. Other scholars derive it from Old Iranian yazata, Middle Persian yazad, divine being. Another derivation of the word origin relates to Ez dā ('Created me'). Yazidis also refer to Xwedê ez dam ('God created me') and to Em miletê ezdaîn ('We are the Ezdayi nation').
Scholars have discovered many striking similarities between the Yazidis, the Yaresan and the Kurdish Alevis. The shared features among the three religions can be traced back to an ancient faith that was probably dominant among the western Iranic peoples, but distinct from Zoroastrianism and derived from the pre-Zoroastrian Iranic tradition.