Iranian languages are the eastern-most group of the living Indo-European languages. They are well represented among the oldest records of Indo-European languages. These originate around modern Afghanistan and early on split as some people went west and some went east.
I. Eastern Iranian A. Northeastern 1. Avestan 2. Chorasmian (Khwarezmian) 3. Bactrian 4. Sogdian (Dialects: Christian, Buddhist, Manichaean), Yaghnobi 5. Scythian, Sarmatian, Alanian, Ossetian (Dialects: Iron, Digor) B. Southeastern 1. Munji, Sanglechi, Ishkashmi, Zebaki, Sarikoli, Shugni, Rushani, Yazgulami, Wakhi, Yidgha 2. Saka (Dialects: Khotanese and Tumshuqese), Pashto, Waneci II. Western Iranian A. Northwestern 1. Ormuri, Parachi 2. Yazdi (spoken by Zoroastrians), Kermani (spoken by Zoroastrians), Qohrudi, Abuzeda badi, Abyanei, Tari, Ardestani, Anaraki, Varzenei, Badrudi, Gazi, Vafsi, Khunsari, Natanzi, Nayini, Sivandi, Soi, Ashtiani, Farizandi, Yarani, Mahallati, Khuri, Kohrudi, Judeo-Golpaygani, Judeo-Yazdi, Judeo-Kermani, Judeo-Shirazi, Judeo-Esfahani, Judeo-Hamedani, Judeo-Kashani, Judeo-Borujerdi, Judeo-Nehevandi, Judeo-Khunsari 3. Median, Kurdish (Dialects: Kurdi, Kurmanji, Kermanshahi) 4. Gorani, Kirmanjki (Northern Zaza), Dimli (Southern Zaza) 5. Parthian, Semnani, Sangisari 6. Gilaki, Mazanderani, Rashti, Shahmirzadi 7. Balochi, Bashkardi 8. Talysh, Harzani B. Southwestern 1. Old Persian, Middle Persian (Dialects: Pahlavi, Manichaean) Persian (Farsi), Dari, Tajik, Hazaragi, Dzhidi (Judeo-Persian), Judeo-Bukharic 2. Judeo-Tat, Muslim Tat 3. Fars, Lari 4. Luri, Bakhtiari, Feyli, Kumzari