| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Оса | city | Kirovskaya Oblast' | Russia | 58.55 | 48.06 | 830 | 169 |
| Оса | city | Permskiy Kray | Russia | 57.28 | 55.46 | 301 | 8500 |
| Оса | city | Irkutskaya Oblast' | Russia | 53.39 | 103.88 | 1669 | 447 |
| Оса | city | Volyns'ka Oblast' | Ukraine | 50.96 | 24.55 | 830 | 1800 |
| Оса-де-ла-Вега | city | Castilla-La Mancha | Spain | 39.66 | -2.76 | 2509 | 999 |
| Осава | city | Zakarpats'ka Oblast' | Ukraine | 48.28 | 23.38 | 853 | 9834 |
| Осавульщина | city | Poltavs'ka Oblast' | Ukraine | 50.12 | 32.57 | 344 | 3954 |
| Осада-Дедино | city | Vitebskaya Oblast' | Belarus | 55.69 | 27.49 | 830 | 1340 |
| Осадная Балка | city | Volgogradskaya Oblast' | Russia | 48.82 | 44.72 | 82 | 210590 |
| Осадный | city | Rostovskaya Oblast' | Russia | 46.57 | 40.32 | 265 | 1341 |
| Осадовка | city | Tambovskaya Oblast' | Russia | 52.45 | 40.68 | 830 | 1192 |
| Осадовка Вторая | city | Tambovskaya Oblast' | Russia | 52.41 | 40.65 | 830 | 1192 |
| Осадче | city | Dnipropetrovs'ka Oblast' | Ukraine | 48.61 | 36.46 | 830 | 2213 |
| Осадчево | city | Voronezhskaya Oblast' | Russia | 51.15 | 38.59 | 830 | 1788 |
| Осадчее | city | Belgorodskaya Oblast' | Russia | 50.36 | 38.92 | 830 | 1341 |
| Осадчее | city | Voronezhskaya Oblast' | Russia | 51.15 | 38.59 | 830 | 1788 |
| Осадчий | city | Volgogradskaya Oblast' | Russia | 49.32 | 45.50 | 88 | 745 |
| Осадьковка | city | Kharkivs'ka Oblast' | Ukraine | 49.66 | 37.53 | 305 | 2181 |
| Осадьківка | city | Kharkivs'ka Oblast' | Ukraine | 49.66 | 37.53 | 305 | 2181 |
| Осака | city | Osaka | Japan | 34.68 | 135.52 | 13 | 1388107 |
| Осака-Саяма | city | Osaka | Japan | 34.52 | 135.56 | 305 | 468627 |
| Осакаровка | city | Qaraghandy | Kazakhstan | 50.56 | 72.57 | 1669 | 447 |
| Осакасаяма | city | Osaka | Japan | 34.52 | 135.56 | 305 | 468627 |
| Осан | city | Gyeonggi | Korea, Republic of (South) | 37.15 | 127.07 | 55 | 181938 |
| Осаниха | city | Kostromskaya Oblast' | Russia | 58.83 | 46.64 | 830 | 298 |
| Осанково | city | Ivanovskaya Oblast' | Russia | 56.53 | 40.06 | 830 | 1639 |
| Осановец | city | Ivanovskaya Oblast' | Russia | 56.56 | 39.98 | 830 | 1639 |
| Осановка | city | Saratovskaya Oblast' | Russia | 52.43 | 46.62 | 830 | 745 |
| Осаново | city | Minskaya Oblast' | Belarus | 54.32 | 26.73 | 830 | 3820 |
| Осаново | city | Arkhangel'skaya Oblast' | Russia | 63.59 | 45.62 | 246 | 149 |
| Осаново | city | Kirovskaya Oblast' | Russia | 60.24 | 46.95 | 259 | 447 |
| Осаново | city | Tul'skaya Oblast' | Russia | 54.20 | 38.68 | 830 | 1104 |
| Осаново | city | Vologodskaya Oblast' | Russia | 59.18 | 39.89 | 830 | 247636 |
| Осаново | city | Arkhangel'skaya Oblast' | Russia | 63.59 | 45.63 | 246 | 149 |
| Осаново-Дубовский | city | Moskovskaya Oblast' | Russia | 55.48 | 39.66 | 830 | 447 |
| Осаново-Дубовское | city | Moskovskaya Oblast' | Russia | 55.48 | 39.66 | 830 | 447 |
| Осанци | city | Kriva Palanka | Macedonia | 42.29 | 22.17 | 3746 | 2202 |
| Осаоница | city | Serbia | 43.20 | 20.32 | 2844 | 5811 | |
| Осарт | city | Kirovskaya Oblast' | Russia | 59.13 | 49.95 | 830 | 149 |
| Осас-Сюар | city | Aquitaine | France | 43.14 | -0.89 | 830 | 2209 |
| Осаску | city | Sao Paulo | Brazil | -23.57 | -46.78 | 2509 | 1032261 |
| Осатово-Раменье | city | Vologodskaya Oblast' | Russia | 60.10 | 46.42 | 324 | 223 |
| Осаў | city | Gomel'skaya Oblast' | Belarus | 51.86 | 28.07 | 830 | 745 |
| Осаў | city | Gomel'skaya Oblast' | Belarus | 53.20 | 30.61 | 830 | 731 |
| Осаў | city | Gomel'skaya Oblast' | Belarus | 52.48 | 29.86 | 396 | 0 |
| Осаў | city | Gomel'skaya Oblast' | Belarus | 52.02 | 30.00 | 416 | 1490 |
| Осаў | city | Gomel'skaya Oblast' | Belarus | 52.56 | 30.53 | 830 | 892 |
| Осаў | city | Mogilevskaya Oblast' | Belarus | 53.43 | 29.40 | 830 | 1052 |
| Осаўцы | city | Brestskaya Oblast' | Belarus | 52.09 | 25.23 | 830 | 2235 |
| Осаўцы | city | Brestskaya Oblast' | Belarus | 52.55 | 24.85 | 830 | 5171 |