Western Iranian languages

Old Iranian period

• Northwest: Median†, etc.
• Southwest: Old Persian†, etc.

Middle Iranian period

• Northwest: Parthian†, etc.
• Southwest: Middle Persian†, etc

Modern period (Neo-Iranian)

• Northwestern Iranian
  • Caspian
    • Gorgani†
    • Daylami†
    • Gilaki (incl. Rudbari)
    • Mazandarani (incl. Tabari, Shahmirzadi)
  • Semnani
    • Semnani
    • Sangisari
    • Lasgerdi-Sorkhei (incl. Aftari)
  • Adharic (Azaric)
    • Old Adhari†
      • Tatic
        • Talysh (north-central)
        • Gozarkhani (Alamuti)
        • North: Harzandi, Karingani (Kalasuri, Khoynarudi)
        • Kho'ini
        • South
          • Alviri-Vidari (Alviri, Vidari)
          • Ashtiani (Amora’i, Kahaki, Tafreshi), Vafsi
          • Razajerdi, Eshtehardi, Takestani (Ramandi, Kharaqani)
        • Central
          • Khalkhalic: Kajali, Koresh-e Rostam (Karani), Shahrudi (incl. southern Talysh)
          • Maraghei
          • Upper Taromi, Kabatei
  • Kurdic (acc. Anonby)^[4][5]
    • Kurdish
      • Northern Kurdish (Kurmanji)
      • Central Kurdish (Sorani)
      • Southern Kurdish
      • Laki
      • Kurdali
    • Zaza–Gorani
      • Zazaki
      • Gorani (incl. Hawrami, Sarli, Shabaki, Bajalani)
  • Balochi (incl. Koroshi)
  • Khuri (Kavir)
• Central Plateau^[6]
  • Sivandi
  • Judeo-Hamadani, Judeo-Borujerdi
  • NW = Khunsari (Judeo-Khunsari, Judeo-Khomeini, Vanishani, Mahallati, Vanishani, Judeo-Golpaygani, etc.)
  • NE = Kashanic: Soi (incl. Abuzaydabadi), Natanzi
  • SW = Gazi (many dialects)
  • Southeastern: Zoroastrian Dari (Zoroastrian Yazdi, Judeo-Kermani), Nayini

• Southwestern Iranian
  • Persian (dialects: Iranian Persian & Judeo-Persian, Dari (incl. Madaglashti), Tajik & Judeo-Bukharic, Hazaragi, Aimaq, Sistani, Pahlavani Persian†)
  • Persid
    • Shushtari–Dezfuli
    • Luri (incl. Bakhtiari)
    • Kuhmareyi (incl. Davani)
    • (see also Persid dialects of Khuzestan)
  • Bashkardi (Southern Bashkardi)
  • Garmsiri (Northern Bashkardi, Bandari, Minabi/Minowi–Hormozi: Hormozgan)^[7]
  • Kumzari
  • Achomi (Larestani)
  • Caucasian Tat (SW Tat): Tat, Judeo-Tat
  • Fars (numerous SW Fars dialects: Heshnizi, Gavbandi, Dashtini, Kangani, Jami, Bardesuni (Bardestani), Khenesiri, Bordekhuni, Dashtiyati (Dashti), Tangesiri (incl. Delvari), Khormuji, Khayizi, Ahrami, Bushehri, Bandar Rig (Fars of Bandar Rig), Genaveyi, Deylami (Liravi)†, Dashtesuni (Dashtestani), Judeo-Shirazi, etc.)

There is also a recently described, and as yet unclassified, Batu'i language that is presumably Western Iranian.^[1] Extinct Deilami is sometimes classified in the Caspian branch. An Iranian Khalaj language has been claimed, but does not exist; the Khalaj speak a Turkic language.

Many of the languages and dialects spoken in Markazi and Isfahan provinces are giving way to Persian in the younger generations.^[6]

It is to note that the Caspian languages (incl. Adharic), the central dialects, and the Zaza-Gorani languages are likely descended from a later form of Median with varying amounts of Parthian substrata,^[8] whereas the Semnani languages were likely descended from Parthian.^[9]