| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Ogamerli | city | Ostan-e Ardabil | Iran | 37.7791667 | 48.1683333 | 7050 | 9037 |
| Omidcheh | city | Ostan-e Ardabil | Iran | 38.2866667 | 48.1413889 | 4842 | 8975 |
| Omīdcheh | city | Ostan-e Ardabil | Iran | 38.2866667 | 48.1413889 | 4842 | 8975 |
| Onar | city | Ostan-e Ardabil | Iran | 38.4861111 | 47.8427778 | 4776 | 8950 |
| Onār | city | Ostan-e Ardabil | Iran | 38.4861111 | 47.8427778 | 4776 | 8950 |
| Oruj 'Alilu | city | Ostan-e Ardabil | Iran | 38.9977778 | 47.7391667 | 3123 | 8888 |
| Orūj 'Alīlū | city | Ostan-e Ardabil | Iran | 38.9977778 | 47.7391667 | 3123 | 8888 |
| Owjur | city | Ostan-e Ardabil | Iran | 38.1872222 | 47.9758333 | 6981 | 8986 |
| Owjūr | city | Ostan-e Ardabil | Iran | 38.1872222 | 47.9758333 | 6981 | 8986 |
| Ownar | city | Ostan-e Ardabil | Iran | 38.4861111 | 47.8427778 | 4776 | 8950 |
| Ownār | city | Ostan-e Ardabil | Iran | 38.4861111 | 47.8427778 | 4776 | 8950 |
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