| Cities | Distance |
|---|---|
| Olbia to Oria | 426.80 mi (686.87 km) |
| Olbia to Oristano | 84.63 mi (136.20 km) |
| Olbia to Orta Nova | 324.48 mi (522.20 km) |
| Olbia to Orte | 183.15 mi (294.75 km) |
| Olbia to Ortona | 271.68 mi (437.22 km) |
| Olbia to Orvieto | 183.18 mi (294.80 km) |
| Olbia to Orzinuovi | 310.53 mi (499.76 km) |
| Olbia to Osimo | 270.16 mi (434.78 km) |
| Olbia to Ospitaletto | 321.79 mi (517.87 km) |
| Olbia to Ostuni | 422.66 mi (680.21 km) |
| Olbia to Ottaviano | 260.02 mi (418.46 km) |
| Olbia to Ovada | 260.81 mi (419.74 km) |
| Olbia to Ozieri | 34.66 mi (55.78 km) |
| Olbia to Paceco | 259.88 mi (418.24 km) |
| Olbia to Pachino | 418.27 mi (673.14 km) |