| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Ocampo | city | Province of Camarines Sur | Philippines | 13.5613889 | 123.3761111 | 183 | 38206 |
| Ocini | city | Province of Camarines Sur | Philippines | 13.6333333 | 123.4833333 | 255 | 53189 |
| Odicon | city | Province of Camarines Sur | Philippines | 13.5333333 | 123.0666667 | 187 | 36450 |
| Odoc | city | Province of Camarines Sur | Philippines | 13.7166667 | 122.9666667 | 334 | 39456 |
| Ogbon | city | Province of Camarines Sur | Philippines | 13.4 | 123.3666667 | 36 | 88963 |
| Ogtoc | city | Province of Camarines Sur | Philippines | 13.7833333 | 122.7333333 | 0 | 4686 |
| Olag Pequeno | city | Province of Camarines Sur | Philippines | 13.8166667 | 123.3666667 | 219 | 26468 |
| Olag Pequeño | city | Province of Camarines Sur | Philippines | 13.8166667 | 123.3666667 | 219 | 26468 |
| Olas | city | Province of Camarines Sur | Philippines | 13.9219444 | 123.4352778 | 19 | 12419 |
| Omalo | city | Province of Camarines Sur | Philippines | 13.7166667 | 123.1166667 | 3 | 26500 |
| Omalo | city | Province of Camarines Sur | Philippines | 13.7258333 | 123.6191667 | 0 | 14530 |
| Ombao | city | Province of Camarines Sur | Philippines | 13.4738889 | 123.245 | 19 | 53054 |
| Ombaw | city | Province of Camarines Sur | Philippines | 13.4738889 | 123.245 | 19 | 53054 |
| Omon | city | Province of Camarines Sur | Philippines | 13.8263889 | 122.6733333 | 0 | 7949 |
| Omon | city | Province of Camarines Sur | Philippines | 13.8333333 | 122.7 | 65 | 7949 |
| Oring | city | Province of Camarines Sur | Philippines | 13.9113889 | 123.8352778 | 26 | 2391 |
| Oroc-Osoc | city | Province of Camarines Sur | Philippines | 13.7947222 | 123.8530556 | 111 | 11764 |
| Osine | city | Province of Camarines Sur | Philippines | 13.6333333 | 123.4833333 | 255 | 53189 |
| Otoc | city | Province of Camarines Sur | Philippines | 13.7833333 | 122.7333333 | 0 | 4686 |