| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Os Virgílios | city | Faro | Portugal | 37.03 | -7.90 | 65 | 54656 |
| Ossada | city | Braga | Portugal | 41.50 | -8.49 | 830 | 46105 |
| Ossela | city | Aveiro | Portugal | 40.83 | -8.43 | 830 | 39029 |
| Osseloa | city | Aveiro | Portugal | 40.69 | -8.48 | 830 | 15482 |