| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ogrudzha | city | Geghark'unik' | Armenia | 40.28 | 45.78 | 7076 | 3617 |
| Ordaklu | city | Geghark'unik' | Armenia | 40.52 | 44.93 | 6282 | 23015 |
| Ordzhonikidze | city | Geghark'unik' | Armenia | 40.58 | 45.40 | 6709 | 11390 |
| Orogis | city | Geghark'unik' | Armenia | 40.08 | 45.50 | 7670 | 3576 |
| Oskani | city | Geghark'unik' | Armenia | 40.06 | 45.40 | 9228 | 3576 |
| Oskeshen | city | Geghark'unik' | Armenia | 40.04 | 45.81 | 9376 | 3276 |
| Ovtsevodcheskaya Tovarnaya Ferma | city | Geghark'unik' | Armenia | 39.98 | 45.25 | 8497 | 3291 |
| Ovtsevodcheskaya Tovarnaya Ferma Tsakhkashen | city | Geghark'unik' | Armenia | 39.98 | 45.25 | 8497 | 3291 |