| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Olesce | city | Lasko | Slovenia | 46.16 | 15.31 | 1669 | 6772 |
| Olsevek | city | Sencur | Slovenia | 46.28 | 14.43 | 1669 | 16382 |
| Olsnitz | city | Murska Sobota | Slovenia | 46.66 | 16.17 | 830 | 23451 |
| Oltresonzia | city | Bovec | Slovenia | 46.32 | 13.54 | 1669 | 2109 |