| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Obairu | city | Khuzestan | Iran | 30.98 | 49.15 | 29 | 3445 |
| Obalik | city | Khorasan-e Razavi | Iran | 35.73 | 59.29 | 6236 | 1788 |
| Obalik Bāla | city | Khorasan-e Razavi | Iran | 35.73 | 59.29 | 6236 | 1788 |
| Obar | city | Zanjan | Iran | 36.92 | 48.97 | 2509 | 2086 |
| Obeh -e `Ali Kahiha | city | Semnan | Iran | 35.26 | 52.47 | 3349 | 20132 |
| Obeh -e ‘Ālī Kāhīhā | city | Semnan | Iran | 35.26 | 52.47 | 3349 | 20132 |
| Obeh Mohammad Jan | city | Khorasan-e Shomali | Iran | 37.82 | 56.36 | 1669 | 1788 |
| Obeh-e Elikahiha | city | Semnan | Iran | 35.26 | 52.47 | 3349 | 20132 |
| Obeh-e Lorha | city | Semnan | Iran | 35.20 | 52.33 | 2808 | 18578 |
| Obeh-e Nowhā | city | Semnan | Iran | 35.22 | 52.30 | 2798 | 13115 |
| Obeh-e `Ali Kahiha | city | Semnan | Iran | 35.26 | 52.47 | 3349 | 20132 |
| Obeh-e ‘Ālī Kāhīhā | city | Semnan | Iran | 35.26 | 52.47 | 3349 | 20132 |
| Oboskher | city | Khuzestan | Iran | 30.96 | 48.36 | 3 | 9685 |
| Oburang | city | Kerman | Iran | 28.76 | 56.75 | 6863 | 1341 |
| Obīresh | city | Khuzestan | Iran | 31.25 | 49.26 | 196 | 28967 |
| Obūdehālīs | city | Khuzestan | Iran | 30.84 | 49.62 | 68 | 17110 |