| Place | State | Latitude | Longitude | Elevation (meters) | Elevation (feet) |
|---|
| Oloybuaya | Province of Tarlac | 15.6 | 120.6 | 29 | 95 |
| Oluangan | Province of Iloilo | 10.8272222 | 122.3697222 | 123 | 404 |
| Olutanga | Province of Zamboanga del Sur | 7.3105556 | 122.8463889 | 19 | 62 |
| Omagueb | Province of Abra | 17.6166667 | 120.55 | 48 | 157 |
| Omalo | Province of Camarines Sur | 13.7258333 | 123.6191667 | 59 | 194 |
| Omalo | Province of Camarines Sur | 13.7166667 | 123.1166667 | 4 | 13 |
| Omambong | Province of Iloilo | 10.7547222 | 122.3947222 | 47 | 154 |
| Omando | Province of Pangasinan | 15.8833333 | 120.45 | 21 | 69 |
| Omapad | Province of Cebu | 10.3333333 | 123.95 | 9 | 30 |
| Omauas | Province of Negros Oriental | 9.7016667 | 123.1 | 536 | 1759 |
| Omauas | Province of Eastern Samar | 11.5322222 | 125.4716667 | 44 | 144 |
| Ombao | Province of Camarines Sur | 13.4738889 | 123.245 | 11 | 36 |
| Omidep | Province of Masbate | 12.2563889 | 123.6094444 | 62 | 203 |
| Omio | Province of Iloilo | 11.25 | 123.0166667 | 19 | 62 |
| Omjon | Province of Bohol | 9.75 | 124.2 | 450 | 1476 |
| Omod | Province of Negros Oriental | 9.4069444 | 122.8691667 | 124 | 407 |
| Omon | Province of Camarines Sur | 13.8333333 | 122.7 | 9 | 30 |
| Omon | Province of Camarines Sur | 13.8263889 | 122.6733333 | 22 | 72 |
| Omonay | Province of Bukidnon | 7.4394444 | 124.8805556 | 94 | 308 |
| Omosmarta | Province of Basilan | 6.6016667 | 122.3113889 | 55 | 180 |
