Tajiks is the name of various Persian-speaking Eastern Iranian groups of people native to Central Asia, living primarily in Afghanistan, Tajikistan and Uzbekistan. Even though the term
Tajik does not refer to a cohesive cross-national ethnic group, Tajiks are the largest ethnicity in Tajikistan, and the second-largest in Afghanistan and Uzbekistan. They speak varieties of Persian, a Western Iranian language. In Tajikistan, since the 1939 Soviet census, its small Pamiri and Yaghnobi ethnic groups are included as Tajiks. In China, the term is used to refer to its Pamiri ethnic groups, the Tajiks of Xinjiang, who speak the Eastern Iranian Pamiri languages. In Afghanistan, the Pamiris are counted as a separate ethnic group.