| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Oas | city | Province of Albay | Philippines | 13.2588889 | 123.4952778 | 78 | 50563 |
| Obaliw | city | Province of Albay | Philippines | 13.2333333 | 123.5 | 154 | 46300 |
| Ogob | city | Province of Albay | Philippines | 13.3566667 | 123.6616667 | 114 | 97020 |
| Olyaoyao | city | Province of Albay | Philippines | 13.0969444 | 123.4658333 | 367 | 50166 |
| Onglo | city | Province of Albay | Philippines | 13.35 | 123.7166667 | 82 | 78324 |
| Ongo | city | Province of Albay | Philippines | 13.1397222 | 123.52 | 659 | 52594 |
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