List of the main cities of Iran, ordered by number of inhabitants.
| name | type | population |
|---|---|---|
| Tehran | city | 8,000,000 |
| Mashhad | city | 3,312,090 |
| Isfahan | city | 1,808,968 |
| Tabriz | city | 1,800,000 |
| Shiraz | city | 1,713,000 |
| Karaj | city | 1,712,000 |
| Qom | city | 1,075,000 |
| Ahwaz | city | 1,060,000 |
| Kermanshah | city | 1,000,000 |
| Qazvin | city | 1,000,000 |
| Rasht | city | 956,971 |
| Zahedan | city | 672,589 |
| Urmia | city | 667,499 |
| Arak | city | 591,756 |
| Kerman | city | 537,718 |
| Hamedan | city | 526,000 |
| Yazd | city | 486,152 |
| Ardabil | city | 482,632 |
| Eslamshahr | city | 448,129 |
| Bandar Abbas | city | 435,751 |
| Najafabad | city | 400,000 |
| Zanjan | city | 386,851 |
| Malard | town | 380,000 |
| Sanandaj | city | 373,987 |
| Gorgan | city | 329,536 |
| Khorramabad | city | 328,544 |
| شهرقدس | city | 316,631 |
| Shahriyar | city | 309,607 |
| Sari | city | 300,000 |
| Saveh | city | 300,000 |
| Bandar-e Mahshahr | town | 296,271 |
| Kashan | city | 275,904 |
| Neyshabur | city | 264,375 |
| Dezful | city | 248,380 |
| Khomeini Shahr | town | 247,128 |
| Pakdasht | town | 236,319 |
| Borujerd | city | 234,997 |
| Sabzevar | city | 231,557 |
| Abadan | city | 231,476 |
| Qarchak | town | 231,075 |
| Varamin | town | 225,628 |
| Amol | city | 225,000 |
| Babol | city | 220,000 |
| Mahabad | city | 215,529 |
| Bojnurd | city | 207,196 |
| Qaem Shahr | city | 204,953 |
| Birjand | city | 203,636 |
| Nasimshahr | town | 200,393 |
| Sirjan | city | 199,704 |
| Bushehr | city | 195,222 |
| Amiriyeh | town | 185,129 |
| Khoy | town | 182,000 |
| Fardis | town | 181,174 |
| Marand | town | 180,000 |
| Dorud | town | 174,508 |
| Shahin Shahr | town | 173,329 |
| Ilam | city | 172,213 |
| Bukan | town | 170,600 |
| Malayer | city | 170,237 |
| Pardis | city | 169,060 |
| Lahijan | town | 167,544 |
| Maragheh | town | 163,000 |
| Shahr-e Kord | city | 159,775 |
| Semnan | city | 153,680 |
| Gonbad-e Qabus | town | 151,910 |
| Rafsanjan | city | 151,420 |
| Rudsar | town | 144,500 |
| Kazerun | town | 143,869 |
| کمالشهر | town | 141,669 |
| Saqqez | town | 140,000 |
| Shahrud | city | 140,000 |
| Zabol | city | 140,000 |
| Bandar-e Anzali | city | 139,016 |
| Langarud | town | 137,500 |
| Andimeshk | city | 135,116 |
| Shahreza | town | 134,952 |
| Khorramshahr | town | 133,097 |
| Torbate Heydariye | city | 131,150 |
| Bam | city | 127,396 |
| Marvdasht | town | 123,858 |
| Piranshahr | town | 123,639 |
| Miandoab | town | 123,081 |
| Behbahan | town | 122,604 |
| Naqadeh | town | 121,602 |
| Borazjan | town | 120,000 |
| Jahrom | city | 120,000 |
| Nazarabad | town | 119,512 |
| محمدشهر | town | 119,418 |
| Izeh | town | 119,399 |
| Jiroft | city | 111,034 |
| Fasa | town | 110,825 |
| Marivan | town | 110,464 |
| Baneh | town | 110,218 |
| Yasuj | city | 108,505 |
| Robat Karim | city | 105,393 |
| Quchan | town | 103,760 |
| Shoushtar | town | 101,878 |
| Ahar | town | 100,641 |
| Masjed Soleyman | town | 100,497 |
| Eghbaliye | town | 100,000 |