| Overlea to Noventa Vicentina | 4,285.02 mi (6,896.08 km) |
| Overlea to Novi di Modena | 4,271.03 mi (6,873.56 km) |
| Overlea to Novi Ligure | 4,184.14 mi (6,733.72 km) |
| Overlea to Nuoro | 4,357.20 mi (7,012.23 km) |
| Overlea to Occhiobello | 4,299.20 mi (6,918.90 km) |
| Overlea to Oderzo | 4,308.89 mi (6,934.48 km) |
| Overlea to Oggiono | 4,175.59 mi (6,719.97 km) |
| Overlea to Olbia | 4,344.02 mi (6,991.03 km) |
| Overlea to Oleggio | 4,150.72 mi (6,679.94 km) |
| Overlea to Olgiate Comasco | 4,159.21 mi (6,693.60 km) |
| Overlea to Olgiate Olona | 4,160.40 mi (6,695.51 km) |
| Overlea to Omegna | 4,132.24 mi (6,650.20 km) |
| Overlea to Opera | 4,182.70 mi (6,731.40 km) |
| Overlea to Oppeano | 4,269.57 mi (6,871.20 km) |
| Overlea to Orbassano | 4,121.98 mi (6,633.68 km) |
