The Indo-Iranian languages (also Indo-Iranic languages or Aryan languages) constitute the largest and southeasternmost extant branch of the Indo-European language family (with over 400 languages), predominantly spoken in the geographical subregion of Southern Asia. They have more than 1.5 billion speakers, stretching from Europe (Romani) and the Caucasus (Ossetian, Tat and Talysh), down to Mesopotamia (Kurdish languages, Zaza–Gorani and Kurmanji Dialect continuum) and Persia (Persian), eastward to Xinjiang (Sarikoli) and Assam (Assamese), and south to Sri Lanka (Sinhala) and the Maldives (Maldivian), with branches stretching as far out as Oceania and the Caribbean for Fiji Hindi and Caribbean Hindustani respectively. Furthermore, there are large diaspora communities of Indo-Iranian speakers in northwestern Europe (the United Kingdom), North America (United States, Canada), Australia, South Africa, and the Persian Gulf Region (United Arab Emirates, Saudi Arabia).
This article needs additional citations for verification. (December 2019)
|South, Central, Western Asia, South East Europe and the Caucasus / Total speakers = approximately 1.5 billion in 15 countries|
Distribution of the Indo-Iranian languages
The common ancestor of all of the languages in this family is called Proto-Indo-Iranian—also known as Common Aryan—which was spoken in approximately the late 3rd millennium BC. The three branches of the modern Indo-Iranian languages are Indo-Aryan, Iranian, and Nuristani. A fourth independent branch, Dardic, was previously posited, but recent scholarship in general places Dardic languages as archaic members of the Indo-Aryan branch.