| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Oan | city | Sulawesi Tengah | Indonesia | 1.30 | 121.43 | 55 | 1858 |
| Oan Det | city | Lao Cai | Vietnam | 22.72 | 104.10 | 1830 | 9100 |
| Oana | city | Nusa Tenggara Timur | Indonesia | -10.78 | 123.16 | 1154 | 7384 |
| Oana | city | Kamchatskiy Kray | Russia | 61.63 | 163.17 | 3 | 0 |
| Oanagab | city | Lakes | South Sudan | 6.87 | 29.66 | 1669 | 14529 |
| Oanani | city | Mwali | Comoros | -12.34 | 43.80 | 830 | 8540 |
| Oanbut | city | Upper Nile | South Sudan | 8.02 | 33.05 | 931 | 1355 |
| Oanca | city | Galati | Romania | 46.05 | 27.78 | 830 | 4299 |
| Oancea | city | Galati | Romania | 45.92 | 28.10 | 134 | 3657 |
| Oancea | city | Braila | Romania | 45.35 | 27.70 | 32 | 2111 |
| Oandee | city | Balochistan | Pakistan | 30.96 | 67.78 | 8389 | 2235 |
| Oandi | city | Hiiumaa | Estonia | 59.02 | 22.56 | 16 | 214 |
| Oandu | city | Laane-Virumaa | Estonia | 59.56 | 26.11 | 127 | 234 |
| Oandu | city | Ida-Virumaa | Estonia | 59.26 | 27.01 | 193 | 149 |
| Oandu | city | Lagunes | Cote D'Ivoire (Ivory Coast) | 5.66 | -4.47 | 259 | 9254 |
| Oandzi | city | Lekoumou | Congo | -3.46 | 13.28 | 1669 | 149 |
| Oane | city | Niedersachsen | Germany | 52.27 | 7.28 | 134 | 4804 |
| Oanes | city | Rogaland | Norway | 58.92 | 6.07 | 3 | 844 |
| Oanfo | city | Oromiya | Ethiopia | 5.77 | 38.25 | 7001 | 9685 |
| Oangaon | city | Bihar | India | 25.53 | 86.01 | 134 | 121283 |
| Oanh Ca | city | Xinbei | Taiwan | 24.96 | 121.35 | 121 | 142436 |
| Oani | city | Anjouan | Comoros | -12.13 | 44.43 | 324 | 49157 |
| Oani | city | Gyeonggi | Korea, Republic of (South) | 37.79 | 126.99 | 380 | 39503 |
| Oani | city | Chungbuk | Korea, Republic of (South) | 37.05 | 127.75 | 830 | 6953 |
| Oano | city | Sulawesi Tengah | Indonesia | 1.30 | 121.43 | 55 | 1858 |
| Oano | city | Niassa | Mozambique | -14.79 | 36.85 | 1702 | 1895 |
| Oanta | city | Himachal Pradesh | India | 30.74 | 77.54 | 6227 | 12643 |
| Oantarang | city | Sulawesi Selatan | Indonesia | -6.10 | 120.55 | 0 | 4167 |
| Oantu | city | Neamt | Romania | 46.92 | 26.18 | 1669 | 5101 |
| Oantul | city | Neamt | Romania | 46.92 | 26.18 | 1669 | 5101 |