Hazāra (Persian: هزاره‎) are a Persian-speaking people who mainly live in central Afghanistan and in Pakistan. They are overwhelmingly Shiite Muslims and comprise the third largest ethnic group of Afghanistan, forming about 9% (according to other sources up to 18%) of the total population. Over half a million Hazaras live in neighbouring Pakistan (mostly in Quetta) and a similar number in Iran.

Babur, the founder of the Mughal reign in India, used the name Hazara in his records during the early 16th century for the first time. He, for the most part, referred to the populace of the mountainous region located west of Kabul, as far as Ghor and Ghazni. The word Hazara most likely derives from the Persian word for Thousand (Persian: هزار‎ - hazār). It may be the translation of the Mongol word ming (or minggan), a military unit of 1000 soldiers at the time Gengis Khan. In the passage of time the term Hazar could have substituted the Mongol word and now stands for the group of people.

The origins of the Hazaras have not been fully reconstructed. At least partial Mongol descent is difficult to rule out, because the Hazaras' physical attributes and parts of their culture and language resemble those of Mongolians. Thus, it is widely accepted that Hazaras have Mongolian ancestry, especially after genetic testing showed Hazaras carried the highest frequency of the Y chromosome attributed to Genghis Khan anywhere. Some Hazara tribes are named after famous Mongol generals, for example the Tulai Khan Hazara who are named after Tolui, the youngest son of Genghis Khan. Theories of Mongol or partially Mongol descent are plausible, given that the Il-Khanate Mongol rulers, beginning with Oljeitu, embraced Shia Islam. Today, the majority of the Hazaras adhere to Shi'ism, whereas Afghanistan's other major ethnic groups are mostly Sunni. However, the Sunni and Ismaili Hazara population, while existent, have not been extensively researched by scholars.

The Kurdish people, or Kurds (Kurdish: کورد Kurd), are an Iranic people native to the Middle East, mostly inhabiting a region known as Kurdistan, which includes adjacent parts of Iran, Iraq, Syria, and Turkey. They speak the Kurdish language, which is a member of the Iranian branch of Indo-European languages. The Kurds number about 30 million, the majority living in the Middle East, with significant Kurdish diaspora communities in the cities of western Turkey, in Armenia, Georgia, Israel, Azerbaijan, Russia, Lebanon and, in recent decades, some European countries and the United States. The Kurds are an indigenous ethnic minority in countries where the Kurdistan region is located, although they have enjoyed partial autonomy in Iraqi Kurdistan since 1991. An irredentist movement pushes for the creation of a Kurdish nation state.

The exact origins of the name, "Kurd", are unclear. Reynolds believes that the term Kurd is most likely related to the ancient term Qardu. The common root of Kurd and Qardu is first mentioned in a Sumerian tablet from the third millennium B.C. as the "land of Kar-da." Qardu is etymologically related to the Assyrian term Urartu corresponding to Ararat. According to Asatrian, the most reasonable explanation of this ethnonym is its possible connections with the Cyrtii (Cyrtaei)