| Grevenmacher to Noventa Vicentina | 385.60 mi (620.56 km) |
| Grevenmacher to Novi di Modena | 391.10 mi (629.41 km) |
| Grevenmacher to Novi Ligure | 357.34 mi (575.08 km) |
| Grevenmacher to Nuoro | 662.09 mi (1,065.53 km) |
| Grevenmacher to Occhiobello | 407.36 mi (655.57 km) |
| Grevenmacher to Oderzo | 389.23 mi (626.41 km) |
| Grevenmacher to Oggiono | 301.23 mi (484.79 km) |
| Grevenmacher to Olbia | 623.36 mi (1,003.20 km) |
| Grevenmacher to Oleggio | 299.80 mi (482.48 km) |
| Grevenmacher to Olgiate Comasco | 293.69 mi (472.65 km) |
| Grevenmacher to Olgiate Olona | 301.80 mi (485.71 km) |
| Grevenmacher to Omegna | 278.09 mi (447.55 km) |
| Grevenmacher to Opera | 323.85 mi (521.19 km) |
| Grevenmacher to Oppeano | 374.82 mi (603.22 km) |
| Grevenmacher to Orbassano | 326.93 mi (526.14 km) |
