| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Oeynar | city | Golestan | Iran | 37.78 | 56.10 | 3667 | 3049 |
| Okhali-ye Pa'in | city | Golestan | Iran | 37.11 | 55.08 | 246 | 6384 |
| Okhalī-ye Pā’īn | city | Golestan | Iran | 37.11 | 55.08 | 246 | 6384 |
| Olang | city | Golestan | Iran | 36.80 | 54.15 | 157 | 27047 |
| Omidabad-e Yasir Gachan | city | Golestan | Iran | 37.25 | 54.93 | 98 | 4845 |
| Omīdīyeh | city | Golestan | Iran | 37.25 | 54.92 | 98 | 4845 |
| Oneq Yelqi-ye Sofla | city | Golestan | Iran | 37.00 | 54.57 | 39 | 17132 |
| Oneq Yelqi-ye `Olya | city | Golestan | Iran | 36.99 | 54.58 | 45 | 16909 |
| Oneq Yelqī-ye ‘Olyā | city | Golestan | Iran | 36.99 | 54.58 | 45 | 16909 |
| Orjanli | city | Golestan | Iran | 37.48 | 55.69 | 1669 | 3278 |
| Ostā Moḩammad | city | Golestan | Iran | 37.29 | 55.35 | 390 | 11253 |
| Oveh Jay Qelij | city | Golestan | Iran | 37.10 | 54.92 | 114 | 5134 |
| Oveh Paknak | city | Golestan | Iran | 37.09 | 54.91 | 147 | 6849 |
| Owbeh-ye Gāv Mīshlī | city | Golestan | Iran | 37.36 | 55.34 | 255 | 3512 |
| Owbeh-ye Mohammad `Ali Akhund | city | Golestan | Iran | 37.28 | 55.25 | 213 | 21187 |
| Owbeh-ye Moḩammad ‘Alī Ākhūnd | city | Golestan | Iran | 37.28 | 55.25 | 213 | 21187 |
| Owdak-e Duji | city | Golestan | Iran | 37.01 | 54.78 | 226 | 10483 |
| Owdarreh | city | Golestan | Iran | 36.68 | 54.29 | 5869 | 17139 |
| Owghān | city | Golestan | Iran | 37.26 | 55.43 | 830 | 22749 |
| Owh Jāy Qīlīj | city | Golestan | Iran | 37.10 | 54.92 | 114 | 5134 |
| OwhPalang | city | Golestan | Iran | 37.09 | 54.91 | 147 | 6849 |
| Owjā Bon | city | Golestan | Iran | 36.87 | 54.39 | 200 | 31836 |
| Owkhali Forudgah | city | Golestan | Iran | 37.09 | 55.10 | 324 | 9735 |
| Owkhali-ye Pa'in | city | Golestan | Iran | 37.11 | 55.08 | 246 | 6384 |
| Owkhalī-ye Bālā | city | Golestan | Iran | 37.10 | 55.09 | 242 | 8413 |
| Owkhalī-ye Pā’īn | city | Golestan | Iran | 37.11 | 55.08 | 246 | 6384 |
| Owkhalī-ye Ḩoseynābād | city | Golestan | Iran | 37.10 | 55.09 | 242 | 8413 |
| Owlang | city | Golestan | Iran | 37.15 | 55.62 | 3418 | 2857 |
| Owndar | city | Golestan | Iran | 37.56 | 55.97 | 3454 | 3278 |
| Owneq Yelqi-ye Sofla | city | Golestan | Iran | 37.00 | 54.57 | 39 | 17132 |
| Owneq Yelqi-ye `Olya | city | Golestan | Iran | 36.99 | 54.58 | 45 | 16909 |
| Owneq Yelqī-ye ‘Olyā | city | Golestan | Iran | 36.99 | 54.58 | 45 | 16909 |
| Owrkat Ḩājjī | city | Golestan | Iran | 36.91 | 54.11 | -1689 | 41042 |
| Owzīneh | city | Golestan | Iran | 36.84 | 54.48 | 403 | 34307 |
| Ozbakābād | city | Golestan | Iran | 37.55 | 54.85 | 91 | 3937 |