Indo-Iranian languages

Indo-Iranian
Aryan
Geographic distribution:	South, Central, Western Asia, South East Europe and the Caucasus / Total speakers = approximately about 1.5 billion in 15 countries
Linguistic classification:	Indo-European Indo-Iranian
Proto-language:	Proto-Indo-Iranian
Subdivisions:	Indo-Aryan Iranian Nuristani
ISO 639-5:
Glottolog:	indo1320
The approximate present-day distribution of the Indo-European branches of Eurasia:   Indo-Iranian

The Indo-Iranian languages or Indo-Iranic languages, constitute the largest and easternmost extant branch of the Indo-European language family. It has more than 1 billion speakers, stretching from the Caucasus (Ossetian) and the Balkans (Romani) eastward to Xinjiang (Sarikoli) and Assam (Assamese), and south to the Maldives (Maldivian).

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 modern Indo-Iranian languages are Indo-Aryan, Iranian, and Nuristani. Additionally, sometimes a fourth independent branch, Dardic, is posited, but recent scholarship in general places Dardic languages as archaic members of the Indo-Aryan branch.

Indo-Iranian consists of three groups:

Most of the largest languages (in terms of native speakers) are a part of the Indo-Aryan group: Hindustani (Hindi–Urdu, ~590 million), Bengali (205 million), Punjabi (100 million), Marathi (75 million), Gujarati (50 million), Bhojpuri (40 million), Awadhi (40 million), Maithili (35 million), Odia (35 million), Marwari (30 million), Sindhi (25 million), Rajasthani (20 million), Chhattisgarhi (18 million), Assamese (15 million), Sinhalese (16 million), Nepali (17 million), and Rangpuri (rajbanshi) (15 million). Among the Iranian branch, major languages are Persian (60 million), Pashto (ca. 50 million), Kurdish (35 million), and Balochi (8 million), with a total number of native speakers of more than 1471 million. Numerous smaller languages exist.