| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Osa | city | Mazandaran | Iran | 36.54 | 53.26 | 830 | 17417 |
| Osbak Kūh | city | Yazd | Iran | 34.70 | 57.13 | 3349 | 149 |
| Osbok | city | Kerman | Iran | 29.93 | 56.45 | 6853 | 1341 |
| Osdaghi | city | Azarbayjan-e Sharqi | Iran | 38.39 | 45.88 | 5413 | 16182 |
| Osdāqī | city | Azarbayjan-e Sharqi | Iran | 38.39 | 45.88 | 5413 | 16182 |
| Oseyfer | city | Khuzestan | Iran | 30.65 | 48.75 | 59 | 18365 |
| Osfok | city | Kerman | Iran | 29.93 | 56.45 | 6853 | 1341 |
| Osfūk | city | Kerman | Iran | 29.93 | 56.45 | 6853 | 1341 |
| Osgelu | city | Azarbayjan-e Sharqi | Iran | 38.87 | 46.90 | 5029 | 3972 |
| Oshan | city | Azarbayjan-e Sharqi | Iran | 37.50 | 46.30 | 5869 | 13353 |
| Oshdalaq | city | Azarbayjan-e Sharqi | Iran | 38.45 | 46.98 | 4481 | 7045 |
| Oshdelag | city | Azarbayjan-e Sharqi | Iran | 38.45 | 46.98 | 4481 | 7045 |
| Oshgali | city | Bushehr | Iran | 29.00 | 51.27 | 98 | 3874 |
| Oshkali | city | Bushehr | Iran | 29.00 | 51.27 | 98 | 3874 |
| Oshkali Za'er 'oseyni | city | Bushehr | Iran | 29.00 | 51.27 | 98 | 3874 |
| Oshkohran | city | Esfahan | Iran | 32.44 | 52.58 | 5029 | 9834 |
| Oshkunkuh | city | Mazandaran | Iran | 36.91 | 50.63 | 830 | 19916 |
| Oshkutu'iyeh | city | Kerman | Iran | 26.73 | 58.86 | 2841 | 894 |
| Oshkālī Zā’er ’oseynī | city | Bushehr | Iran | 29.00 | 51.27 | 98 | 3874 |
| Oshkūrī | city | Fars | Iran | 29.04 | 52.87 | 5045 | 4798 |
| Oshkūtū’īyeh | city | Kerman | Iran | 26.73 | 58.86 | 2841 | 894 |
| Oshnaviyeh | city | Azarbayjan-e Gharbi | Iran | 37.04 | 45.10 | 5029 | 6705 |
| Oshnovīeh | city | Azarbayjan-e Gharbi | Iran | 37.04 | 45.10 | 5029 | 6705 |
| Oshnovīyeh | city | Azarbayjan-e Gharbi | Iran | 37.04 | 45.10 | 5029 | 6705 |
| Oshnurang | city | Azarbayjan-e Gharbi | Iran | 36.76 | 45.24 | 5029 | 5237 |
| Oshnuzang | city | Azarbayjan-e Gharbi | Iran | 36.76 | 45.24 | 5029 | 5237 |
| Oshnuzeng | city | Azarbayjan-e Gharbi | Iran | 36.76 | 45.24 | 5029 | 5237 |
| Oshnār | city | Azarbayjan-e Sharqi | Iran | 37.61 | 47.51 | 5328 | 2533 |
| Oshtelaghe Olya | city | Azarbayjan-e Sharqi | Iran | 38.01 | 46.99 | 5314 | 2099 |
| Oshtelaghé Sofla | city | Azarbayjan-e Sharqi | Iran | 38.02 | 46.98 | 5328 | 1985 |
| Oshtelaq-e Bala | city | Azarbayjan-e Sharqi | Iran | 38.01 | 46.99 | 5314 | 2099 |
| Oshtelaq-e Pa'in | city | Azarbayjan-e Sharqi | Iran | 38.02 | 46.98 | 5328 | 1985 |
| Oshtelaq-e Pā’īn | city | Azarbayjan-e Sharqi | Iran | 38.02 | 46.98 | 5328 | 1985 |
| Oshti"n | city | Azarbayjan-e Sharqi | Iran | 38.86 | 46.49 | 3349 | 1945 |
| Oshtolaq Bala | city | Azarbayjan-e Sharqi | Iran | 38.01 | 46.99 | 5314 | 2099 |
| Oshtolaq Pa'in | city | Azarbayjan-e Sharqi | Iran | 38.02 | 46.98 | 5328 | 1985 |
| Oshtolaq Pā’īn | city | Azarbayjan-e Sharqi | Iran | 38.02 | 46.98 | 5328 | 1985 |
| Oshtolaq-e Soflá | city | Azarbayjan-e Sharqi | Iran | 38.02 | 46.98 | 5328 | 1985 |
| Oshtolaq-e `Olya | city | Azarbayjan-e Sharqi | Iran | 38.01 | 46.99 | 5314 | 2099 |
| Oshtolaq-e ‘Olyā | city | Azarbayjan-e Sharqi | Iran | 38.01 | 46.99 | 5314 | 2099 |
| Oshtoq-e Soflá | city | Azarbayjan-e Sharqi | Iran | 38.02 | 46.98 | 5328 | 1985 |
| Oshtoq-e `Olya | city | Azarbayjan-e Sharqi | Iran | 38.01 | 46.99 | 5314 | 2099 |
| Oshtoq-e ‘Olyā | city | Azarbayjan-e Sharqi | Iran | 38.01 | 46.99 | 5314 | 2099 |
| Oshtor Gard | city | Khuzestan | Iran | 31.83 | 49.76 | 2509 | 3740 |
| Oshtor Mel | city | Kordestan | Iran | 35.88 | 45.85 | 5869 | 4917 |
| Oshtor Mol | city | Hamadan | Iran | 34.47 | 48.50 | 5977 | 7345 |
| Oshtor Āqāh | city | Esfahan | Iran | 33.54 | 51.58 | 8700 | 1341 |
| Oshtorak | city | Alborz | Iran | 36.04 | 51.31 | 6728 | 20860 |
| Oshtorak | city | Sistan va Baluchestan | Iran | 30.91 | 61.72 | 1669 | 16873 |
| Oshtorak | city | Sistan va Baluchestan | Iran | 30.83 | 61.76 | 1669 | 7293 |
| Oshtorak | city | Sistan va Baluchestan | Iran | 30.92 | 61.66 | 1669 | 18341 |
| Oshtorak | city | Sistan va Baluchestan | Iran | 30.84 | 61.76 | 1669 | 8577 |
| Oshtorak | city | Yazd | Iran | 31.74 | 56.05 | 5869 | 439 |
| Oshtorak | city | Khorasan-e Jonubi | Iran | 33.09 | 59.29 | 7001 | 596 |
| Oshtoran | city | Hamadan | Iran | 34.64 | 48.30 | 5869 | 5364 |
| Oshtoreh | city | Lorestan | Iran | 33.46 | 47.45 | 4311 | 3129 |
| Oshtorgan | city | Gilan | Iran | 37.51 | 49.23 | -1689 | 7952 |
| Oshtorjān | city | Esfahan | Iran | 32.47 | 51.48 | 5308 | 67257 |
| Oshtorjīn | city | Hamadan | Iran | 34.78 | 48.17 | 5869 | 29323 |
| Oshtormal | city | Azarbayjan-e Gharbi | Iran | 36.20 | 45.50 | 3592 | 22263 |
| Oshtormel | city | Kordestan | Iran | 35.88 | 45.85 | 5869 | 4917 |
| Oshtormel | city | Kordestan | Iran | 34.98 | 47.02 | 5869 | 4470 |
| Oshtormel | city | Hamadan | Iran | 34.47 | 48.50 | 5977 | 7345 |
| Oshtornīān | city | Lorestan | Iran | 34.02 | 48.64 | 5902 | 7450 |
| Oshtorāb | city | Esfahan | Iran | 33.46 | 50.57 | 7040 | 3241 |
| Oshtorābād | city | Kordestan | Iran | 35.85 | 45.91 | 5095 | 5226 |
| Oshtorīnān | city | Lorestan | Iran | 34.02 | 48.64 | 5902 | 7450 |
| Oshtowbin | city | Azarbayjan-e Sharqi | Iran | 38.86 | 46.49 | 3349 | 1945 |
| Oshtubin | city | Azarbayjan-e Sharqi | Iran | 38.86 | 46.49 | 3349 | 1945 |
| Oshtuj | city | Mazandaran | Iran | 36.64 | 50.76 | 2555 | 5215 |
| Oshtut | city | Khorasan-e Shomali | Iran | 38.17 | 56.39 | 2509 | 1659 |
| Oshtut-e Bala | city | Khorasan-e Shomali | Iran | 38.17 | 56.39 | 2509 | 1659 |
| Oshtut-e Pa'in | city | Khorasan-e Shomali | Iran | 38.17 | 56.39 | 2509 | 1659 |
| Oshtī”n | city | Azarbayjan-e Sharqi | Iran | 38.86 | 46.49 | 3349 | 1945 |
| Oshtūj | city | Mazandaran | Iran | 36.65 | 50.77 | 2509 | 5215 |
| Oshtūj | city | Mazandaran | Iran | 36.64 | 50.76 | 2555 | 5215 |
| Oshtūt-e Pā’īn | city | Khorasan-e Shomali | Iran | 38.17 | 56.39 | 2509 | 1659 |
| Oshyand | city | Hamadan | Iran | 34.20 | 48.47 | 6709 | 14452 |
| Oskan-e `Ashayer | city | Fars | Iran | 30.10 | 51.58 | 3408 | 13006 |
| Oskandian | city | Azarbayjan-e Gharbi | Iran | 38.02 | 44.72 | 6709 | 5718 |
| Oskandīyān | city | Azarbayjan-e Gharbi | Iran | 38.02 | 44.72 | 6709 | 5718 |
| Oskanlu-ye Bala | city | Azarbayjan-e Sharqi | Iran | 39.27 | 47.18 | 1036 | 4105 |
| Oskelu | city | Azarbayjan-e Sharqi | Iran | 38.87 | 46.90 | 5029 | 3972 |
| Oskelān | city | Esfahan | Iran | 32.68 | 51.73 | 5091 | 71554 |
| Oskol-e Bala | city | Kordestan | Iran | 35.47 | 46.06 | 5869 | 4035 |
| Oskol-e Pa'in | city | Kordestan | Iran | 35.47 | 46.06 | 5869 | 4035 |
| Oskol-e Pā’īn | city | Kordestan | Iran | 35.47 | 46.06 | 5869 | 4035 |
| Oskol-e Sofla | city | Kordestan | Iran | 35.47 | 46.06 | 5869 | 4035 |
| Oskolak | city | Gilan | Iran | 37.01 | 49.58 | 830 | 4598 |
| Oskoo Mahalleh | city | Mazandaran | Iran | 36.41 | 52.31 | 830 | 19515 |
| Oskotu | city | Kerman | Iran | 26.73 | 58.86 | 2841 | 894 |
| Oskuabad | city | Esfahan | Iran | 33.28 | 52.50 | 5869 | 0 |
| Oskul Deh | city | Alborz | Iran | 36.04 | 50.84 | 6719 | 4549 |
| Oskuq | city | Azarbayjan-e Sharqi | Iran | 37.46 | 48.14 | 5351 | 2533 |
| Oskān | city | Fars | Iran | 28.83 | 55.03 | 5203 | 745 |
| Oskān-e ‘Ashāyer | city | Fars | Iran | 30.10 | 51.58 | 3408 | 13006 |
| Oskū | city | Azarbayjan-e Sharqi | Iran | 37.92 | 46.12 | 5206 | 84324 |
| Oskū Mahalīeh | city | Mazandaran | Iran | 36.41 | 52.31 | 830 | 19515 |
| Oskū Maḩalleh | city | Mazandaran | Iran | 36.41 | 52.31 | 830 | 19515 |
| Oskūl Darreh | city | Alborz | Iran | 36.04 | 50.84 | 6719 | 4549 |
| Osqofnesar | city | Gilan | Iran | 37.44 | 49.21 | 3 | 26037 |
| Osqolūn | city | Esfahan | Iran | 32.85 | 51.93 | 5068 | 3587 |
| Osqul | city | Khorasan-e Jonubi | Iran | 32.62 | 59.34 | 5944 | 596 |
| Osta-ye Bakharz | city | Khorasan-e Razavi | Iran | 34.84 | 60.30 | 5029 | 2037 |
| Osta-ye Pa'in | city | Khorasan-e Razavi | Iran | 35.45 | 61.14 | 2509 | 2384 |
| Ostab | city | Khorasan-e Jonubi | Iran | 32.74 | 59.13 | 6709 | 596 |
| Ostad Deh | city | Khorasan-e Razavi | Iran | 33.86 | 59.09 | 5029 | 1043 |
| Ostad Kalayeh-ye Bala Mahalleh | city | Gilan | Iran | 37.13 | 50.21 | 3 | 45412 |
| Ostad Kalayeh-ye Pa'in Mahalleh | city | Gilan | Iran | 37.12 | 50.23 | 3 | 31071 |
| Ostad Kolayeh | city | Gilan | Iran | 37.12 | 50.22 | -1689 | 30516 |
| Ostad Mo`in | city | Tehran | Iran | 35.70 | 51.34 | 3766 | 1213020 |
| Ostad Mo`in-e Gharbi | city | Tehran | Iran | 35.70 | 51.34 | 3766 | 1213020 |
| Ostad Moein | city | Tehran | Iran | 35.70 | 51.34 | 3766 | 1213020 |
| Ostad `Abbas | city | Khorasan-e Razavi | Iran | 36.27 | 57.78 | 4189 | 29994 |
| Ostad `Ali Akbar | city | Yazd | Iran | 31.91 | 53.89 | 5452 | 4321 |
| Ostad-e Mo`in Sharqi | city | Tehran | Iran | 35.69 | 51.35 | 4189 | 1294455 |
| Ostadan | city | Yazd | Iran | 31.52 | 54.63 | 5029 | 447 |
| Ostahu'iyeh | city | Kerman | Iran | 30.36 | 55.44 | 7549 | 2635 |
| Ostaleh Kenar | city | Gilan | Iran | 37.53 | 48.88 | 2719 | 2980 |
| Ostaluljabin | city | Azarbayjan-e Sharqi | Iran | 38.07 | 47.58 | 7549 | 4935 |
| Ostam Beyglu | city | Azarbayjan-e Sharqi | Iran | 39.10 | 47.19 | 2509 | 4172 |
| Ostan-e Tehran | city | Qom | Iran | 35.17 | 51.00 | 3743 | 894 |
| Ostay | city | Khorasan-e Razavi | Iran | 35.44 | 61.09 | 3349 | 2384 |
| Ostay | city | Khorasan-e Razavi | Iran | 34.84 | 60.30 | 5029 | 2037 |
| Ostay-ye Pa'in | city | Khorasan-e Razavi | Iran | 35.45 | 61.14 | 2509 | 2384 |
| Ostay-ye Sofla | city | Khorasan-e Razavi | Iran | 35.45 | 61.14 | 2509 | 2384 |
| Ostay-ye `Olya | city | Khorasan-e Razavi | Iran | 35.44 | 61.09 | 3349 | 2384 |
| Ostor Mu'iyeh | city | Kerman | Iran | 29.83 | 56.30 | 8687 | 1285 |
| Ostor Mū’īyeh | city | Kerman | Iran | 29.83 | 56.30 | 8687 | 1285 |
| Ostorjīn | city | Hamadan | Iran | 34.78 | 48.17 | 5869 | 29323 |
| Ostovarchi | city | Esfahan | Iran | 32.71 | 51.73 | 5088 | 71530 |
| Ostu | city | Yazd | Iran | 31.20 | 53.31 | 5029 | 1043 |
| Ostuh | city | Markazi | Iran | 34.33 | 49.24 | 5869 | 9983 |
| Ostuj | city | Markazi | Iran | 34.88 | 50.40 | 3349 | 1226 |
| Ostunrash | city | Azarbayjan-e Gharbi | Iran | 38.01 | 44.41 | 7975 | 4917 |
| Ostur | city | Kerman | Iran | 29.35 | 56.14 | 6709 | 596 |
| Ostureh | city | Azarbayjan-e Gharbi | Iran | 38.06 | 44.45 | 6817 | 4917 |
| Ostā Moḩammad | city | Golestan | Iran | 37.29 | 55.35 | 390 | 11253 |
| Ostā-ye Bālā | city | Khorasan-e Razavi | Iran | 35.44 | 61.09 | 3349 | 2384 |
| Ostā-ye Pā’īn | city | Khorasan-e Razavi | Iran | 35.45 | 61.14 | 2509 | 2384 |
| Ostād | city | Khorasan-e Shomali | Iran | 37.67 | 57.20 | 2509 | 1788 |
| Ostād | city | Khorasan-e Shomali | Iran | 37.17 | 58.00 | 5078 | 2770 |
| Ostād | city | Khorasan-e Razavi | Iran | 34.84 | 60.30 | 5029 | 2037 |
| Ostād | city | Khorasan-e Razavi | Iran | 34.13 | 58.77 | 5029 | 1034 |
| Ostād | city | Khorasan-e Jonubi | Iran | 32.74 | 59.13 | 6709 | 596 |
| Ostād Bākharz | city | Khorasan-e Razavi | Iran | 34.84 | 60.30 | 5029 | 2037 |
| Ostād Kalāyeh-ye Pā’īn Maḩalleh | city | Gilan | Iran | 37.12 | 50.23 | 3 | 31071 |
| Ostād Mo‘īn | city | Tehran | Iran | 35.70 | 51.34 | 3766 | 1213020 |
| Ostād Mo‘īn-e Gharbī | city | Tehran | Iran | 35.70 | 51.34 | 3766 | 1213020 |
| Ostād Teymūrtāsh | city | Khorasan-e Shomali | Iran | 37.49 | 57.14 | 4189 | 1788 |
| Ostād Şāleḩ | city | Kordestan | Iran | 36.03 | 46.99 | 6827 | 2682 |
| Ostād ‘Abbās | city | Khorasan-e Razavi | Iran | 36.27 | 57.78 | 4189 | 29994 |
| Ostād ‘Alī Akbar | city | Yazd | Iran | 31.91 | 53.89 | 5452 | 4321 |
| Ostād-e Mo‘īn Sharqī | city | Tehran | Iran | 35.69 | 51.35 | 4189 | 1294455 |
| Ostādchī | city | Esfahan | Iran | 32.91 | 52.32 | 7549 | 9645 |
| Ostāhū’īyeh | city | Kerman | Iran | 30.36 | 55.44 | 7549 | 2635 |
| Ostān-e Markazī | city | Qom | Iran | 35.17 | 51.00 | 3743 | 894 |
| Ostāy-ye Pā’īn | city | Khorasan-e Razavi | Iran | 35.45 | 61.14 | 2509 | 2384 |
| Ostāy-ye ‘Olyā | city | Khorasan-e Razavi | Iran | 35.44 | 61.09 | 3349 | 2384 |
| Ostūj | city | Markazi | Iran | 34.89 | 50.37 | 3349 | 4040 |
| Ostūr | city | Azarbayjan-e Sharqi | Iran | 37.51 | 47.97 | 3349 | 2533 |
| Ostūr | city | Azarbayjan-e Sharqi | Iran | 37.78 | 47.93 | 5252 | 2533 |
| Ostūr | city | Tehran | Iran | 35.69 | 50.88 | 4189 | 104684 |
| Osās | city | Mazandaran | Iran | 36.54 | 53.26 | 830 | 17417 |
| Osţorīch | city | Yazd | Iran | 31.50 | 54.06 | 8389 | 1147 |