ISO 3166-2:IR is the entry for the Islamic Republic of Iran in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.
Currently for Iran, ISO 3166-2 codes are defined for 31 provinces.
Each code consists of two parts, separated by a hyphen. The first part is IR, the ISO 3166-1 alpha-2 code of Iran. The second part is two digits.
Subdivision names are listed as in the ISO 3166-2 standard published by the ISO 3166 Maintenance Agency (ISO 3166/MA).
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| Code | Subdivision name (fa) | Subdivision name (fa) [a] | Subdivision name (en) [a] |
|---|---|---|---|
| IR-30 | Alborz | البرز | Alborz |
| IR-24 | Ardabīl | اردبیل | Ardabil |
| IR-04 | Āz̄ārbāyjān-e Ghārbī | آذربایجان غربی | West Azerbaijan |
| IR-03 | Āz̄ārbāyjān-e Shārqī | آذربایجان شرقی | East Azerbaijan |
| IR-18 | Būshehr | بوشهر | Bushehr |
| IR-14 | Chahār Maḩāl va Bakhtīārī | چهارمحال و بختیاری | Chaharmahal and Bakhtiari |
| IR-10 | Eşfahān | اصفهان | Isfahan |
| IR-07 | Fārs | فارس | Fars |
| IR-01 | Gīlān | گیلان | Gilan |
| IR-27 | Golestān | گلستان | Golestan |
| IR-13 | Hamadān | همدان | Hamadan |
| IR-22 | Hormozgān | هرمزگان | Hormozgan |
| IR-16 | Īlām | ایلام | Ilam |
| IR-08 | Kermān | کرمان | Kerman |
| IR-05 | Kermānshāh | کرمانشاه | Kermanshah |
| IR-29 | Khorāsān-e Jonūbī | خراسان جنوبی | South Khorasan |
| IR-09 | Khorāsān-e Raẕavī | خراسان رضوی | Central Khorasan |
| IR-28 | Khorāsān-e Shomālī | خراسان شمالی | North Khorasan |
| IR-06 | Khūzestān | خوزستان | Khuzestan |
| IR-17 | Kohgīlūyeh va Bowyer Aḩmad | کهگیلویه و بویراحمد | Kohgiluyeh and Boyer-Ahmad |
| IR-12 | Kordestān | کردستان | Kurdistan |
| IR-15 | Lorestān | لرستان | Lorestan |
| IR-00 | Markazī | مرکزی | Markazi |
| IR-02 | Māzandarān | مازندران | Mazandaran |
| IR-26 | Qazvīn | قزوین | Qazvin |
| IR-25 | Qom | قم | Qom |
| IR-20 | Semnān | سمنان | Semnan |
| IR-11 | Sīstān va Balūchestān | سیستان و بلوچستان | Sistan and Baluchestan |
| IR-23 | Tehrān | تهران | Tehran |
| IR-21 | Yazd | یزد | Yazd |
| IR-19 | Zanjān | زنجان | Zanjan |
The following changes to the entry have been announced in newsletters by the ISO 3166/MA since the first publication of ISO 3166-2 in 1998. ISO stopped issuing newsletters in 2013.
| Newsletter | Date issued | Description of change in newsletter | Code/Subdivision change |
|---|---|---|---|
| Newsletter I-2 | 2002-05-21 | Partial reorganization of subdivision layout. Two new provinces. Two name corrections (IR-17 and IR-18). New reference for the list source | Subdivisions added: IR-27 Golestān IR-28 Qazvīn |
| Newsletter I-8 | 2007-04-17 | Modification of the administrative structure | Subdivisions added: IR-29 Khorāsān-e Janūbī IR-30 Khorāsān-e Razavī IR-31 Khorāsān-e Shemālī Subdivisions deleted: IR-09 Khorāsān |
The following changes to the entry are listed on ISO's online catalogue, the Online Browsing Platform:
| Effective date of change | Short description of change (en) |
|---|---|
| 2014-10-30 | Add 1 province IR-32; update List Source |
| 2014-12-18 | Alignment of the English short name upper and lower case with UNTERM |
| 2020-11-24 | Change of subdivision code from IR-01 to IR-03, IR-02 to IR-04, IR-03 to IR-24, IR-04 to IR-10, IR-05 to IR-16, IR-06 to IR-18, IR-07 to IR-23, IR-08 to IR-14, IR-10 to IR-06, IR-11 to IR-19, IR-12 to IR-20, IR-13 to IR-11, IR-14 to IR-07, IR-15 to IR-08, IR-16 to IR-12, IR-17 to IR-05, IR-18 to IR-17, IR-19 to IR-01, IR-20 to IR-15, IR-21 to IR-02, IR-22 to IR-00, IR-23 to IR-22, IR-24 to IR-13, IR-25 to IR-21, IR-26 to IR-25, IR-28 to IR-26, IR-30 to IR-09, IR-31 to IR-28, IR-32 to IR-30; Update Code Source |