| Oleggio to Noventa Vicentina | 142.27 mi (228.96 km) |
| Oleggio to Novi di Modena | 120.63 mi (194.13 km) |
| Oleggio to Novi Ligure | 58.57 mi (94.25 km) |
| Oleggio to Nuoro | 366.75 mi (590.22 km) |
| Oleggio to Occhiobello | 150.82 mi (242.73 km) |
| Oleggio to Oderzo | 186.68 mi (300.43 km) |
| Oleggio to Oggiono | 36.84 mi (59.28 km) |
| Oleggio to Olbia | 326.50 mi (525.46 km) |
| Oleggio to Olgiate Comasco | 20.48 mi (32.95 km) |
| Oleggio to Olgiate Olona | 12.30 mi (19.79 km) |
| Oleggio to Omegna | 22.10 mi (35.57 km) |
| Oleggio to Opera | 31.98 mi (51.46 km) |
| Oleggio to Oppeano | 125.32 mi (201.69 km) |
| Oleggio to Orbassano | 67.20 mi (108.15 km) |
| Oleggio to Orbetello | 253.17 mi (407.43 km) |
