Pashto is an Eastern Iranian language in the Indo-European language family, natively spoken in northwestern Pakistan, southern and eastern Afghanistan, and some isolated pockets of far eastern Iran near the Afghan border. It has official status in Afghanistan and the Pakistani province of Khyber Pakhtunkhwa. It is known in historical Persian literature as Afghani.

The population of Afghanistan is around 41 million as of 2023. The nation is composed of a multi-ethnic and multilingual society, reflecting its location astride historic trade and invasion routes between Central Asia, South Asia, and Western Asia. Ethnic groups in the country include Pashtun, Tajik, Hazara, Uzbek, as well as smaller groups such as Baloch, Nuristani, Turkmen, Aimaq, Mongol and some others which are less known. Together they make up the contemporary Afghan people.