| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Och'kharabutsakani | city | Aragatsotn | Armenia | 40.29 | 43.66 | 4189 | 3693 |
| Och'kharabutsakani | city | Aragatsotn | Armenia | 40.34 | 43.64 | 4219 | 3686 |
| Ochakan | city | Aragatsotn | Armenia | 40.26 | 44.31 | 3366 | 34401 |
| Och’kharabutsakani | city | Aragatsotn | Armenia | 40.29 | 43.66 | 4189 | 3693 |
| Och’kharabutsakani | city | Aragatsotn | Armenia | 40.34 | 43.64 | 4219 | 3686 |
| Odzhakhkuli | city | Shirak | Armenia | 40.78 | 43.81 | 5029 | 64755 |
| Odzun | city | Lorri | Armenia | 41.05 | 44.61 | 2887 | 677 |
| Odzut | city | Kotayk' | Armenia | 40.41 | 44.55 | 5111 | 4470 |
| Oganavan | city | Aragatsotn | Armenia | 40.34 | 44.39 | 4379 | 8877 |
| Oghch'oghli | city | Shirak | Armenia | 40.83 | 43.73 | 5272 | 5142 |
| Oghch’oghli | city | Shirak | Armenia | 40.83 | 43.73 | 5272 | 5142 |
| Oghormak | city | Ararat | Armenia | 40.11 | 44.36 | 2739 | 98843 |
| Oghyan | city | Vayots' Dzor | Armenia | 39.82 | 45.58 | 7890 | 1937 |
| Ogrudzha | city | Geghark'unik' | Armenia | 40.28 | 45.78 | 7076 | 3617 |
| Ogurbeklu | city | Ararat | Armenia | 39.98 | 44.52 | 2746 | 46487 |
| Ohanavan | city | Aragatsotn | Armenia | 40.34 | 44.39 | 4379 | 8877 |
| Okhchi | city | Syunik' | Armenia | 39.20 | 46.46 | 2509 | 26255 |
| Okhchogli | city | Shirak | Armenia | 40.83 | 43.73 | 5272 | 5142 |
| Okhtar | city | Syunik' | Armenia | 39.28 | 46.36 | 3569 | 4589 |
| Oksuz | city | Armenia | 41.12 | 43.68 | 7549 | 4439 | |
| Oksyuz | city | Armenia | 41.12 | 43.68 | 7549 | 4439 | |
| Oktember | city | Armavir | Armenia | 40.13 | 44.01 | 2851 | 33578 |
| Oktemberyan | city | Armavir | Armenia | 40.15 | 44.04 | 2880 | 32033 |
| Ollag | city | Ararat | Armenia | 40.08 | 44.75 | 5869 | 3427 |
| Onut | city | Tavush | Armenia | 40.98 | 45.25 | 2509 | 3932 |
| Oparts | city | Lorri | Armenia | 40.96 | 44.49 | 4501 | 447 |
| Opartsi | city | Lorri | Armenia | 40.96 | 44.49 | 4501 | 447 |
| Opartsy | city | Lorri | Armenia | 40.96 | 44.49 | 4501 | 447 |
| Orbatekh | city | Vayots' Dzor | Armenia | 39.89 | 45.34 | 6709 | 1937 |
| Ordaklu | city | Geghark'unik' | Armenia | 40.52 | 44.93 | 6282 | 23015 |
| Ordzhonikidze | city | Geghark'unik' | Armenia | 40.58 | 45.40 | 6709 | 11390 |
| Orgov | city | Aragatsotn | Armenia | 40.35 | 44.25 | 5029 | 3874 |
| Orgow | city | Aragatsotn | Armenia | 40.35 | 44.25 | 5029 | 3874 |
| Orj | city | Vayots' Dzor | Armenia | 39.93 | 45.31 | 7549 | 2308 |
| Orogis | city | Geghark'unik' | Armenia | 40.08 | 45.50 | 7670 | 3576 |
| Orom | city | Armenia | 40.66 | 43.89 | 5406 | 5662 | |
| Ororots'ak'ar | city | Vayots' Dzor | Armenia | 39.69 | 45.25 | 6709 | 1923 |
| Ororots'ak'ari | city | Vayots' Dzor | Armenia | 39.69 | 45.24 | 5935 | 1923 |
| Ororots’ak’ar | city | Vayots' Dzor | Armenia | 39.69 | 45.25 | 6709 | 1923 |
| Ororots’ak’ari | city | Vayots' Dzor | Armenia | 39.69 | 45.24 | 5935 | 1923 |
| Orotnavank' | city | Syunik' | Armenia | 39.49 | 46.16 | 6709 | 1937 |
| Orotnavank’ | city | Syunik' | Armenia | 39.49 | 46.16 | 6709 | 1937 |
| Orsk' | city | Syunik' | Armenia | 39.07 | 46.34 | 5971 | 1937 |
| Orsk’ | city | Syunik' | Armenia | 39.07 | 46.34 | 5971 | 1937 |
| Ort'achya | city | Aragatsotn | Armenia | 40.69 | 44.36 | 7769 | 3199 |
| Ortachia | city | Aragatsotn | Armenia | 40.69 | 44.36 | 7769 | 3199 |
| Ortakend | city | Vayots' Dzor | Armenia | 39.78 | 45.35 | 5029 | 8603 |
| Ortakilisa | city | Armenia | 40.85 | 43.84 | 5360 | 57078 | |
| Ort’achya | city | Aragatsotn | Armenia | 40.69 | 44.36 | 7769 | 3199 |
| Osakan | city | Aragatsotn | Armenia | 40.26 | 44.31 | 3366 | 34401 |
| Oschakan | city | Aragatsotn | Armenia | 40.26 | 44.31 | 3366 | 34401 |
| Oshakan | city | Aragatsotn | Armenia | 40.26 | 44.31 | 3366 | 34401 |
| Osjakan | city | Aragatsotn | Armenia | 40.26 | 44.31 | 3366 | 34401 |
| Oskani | city | Geghark'unik' | Armenia | 40.06 | 45.40 | 9228 | 3576 |
| Oskeshen | city | Geghark'unik' | Armenia | 40.04 | 45.81 | 9376 | 3276 |
| Ostin | city | Vayots' Dzor | Armenia | 39.85 | 45.32 | 6007 | 1937 |
| Oszakan | city | Aragatsotn | Armenia | 40.26 | 44.31 | 3366 | 34401 |
| Ot'evan | city | Aragatsotn | Armenia | 40.36 | 44.06 | 5869 | 3874 |
| Othevan | city | Aragatsotn | Armenia | 40.36 | 44.06 | 5869 | 3874 |
| Ot’evan | city | Aragatsotn | Armenia | 40.36 | 44.06 | 5869 | 3874 |
| Ovandara | city | Lorri | Armenia | 41.03 | 44.52 | 5370 | 447 |
| Ovit | city | Shirak | Armenia | 40.77 | 44.00 | 5869 | 5206 |
| Ovit | city | Aragatsotn | Armenia | 40.62 | 44.30 | 6709 | 9372 |
| Ovnanadzor | city | Lorri | Armenia | 41.03 | 44.52 | 5370 | 447 |
| Ovtamech | city | Armavir | Armenia | 40.18 | 44.26 | 2887 | 53054 |
| Ovtashat | city | Ararat | Armenia | 40.10 | 44.34 | 2742 | 50795 |
| Ovtashen | city | Shirak | Armenia | 40.67 | 43.89 | 5196 | 7766 |
| Ovtashen | city | Ararat | Armenia | 40.03 | 44.45 | 2742 | 72577 |
| 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 |
| Ovuni | city | Shirak | Armenia | 40.87 | 43.80 | 5869 | 19018 |