| Saint-Nazaire to Novi di Modena | 648.80 mi (1,044.14 km) |
| Saint-Nazaire to Novi Ligure | 555.07 mi (893.29 km) |
| Saint-Nazaire to Nuoro | 748.75 mi (1,205.00 km) |
| Saint-Nazaire to Occhiobello | 679.63 mi (1,093.76 km) |
| Saint-Nazaire to Oderzo | 705.59 mi (1,135.54 km) |
| Saint-Nazaire to Oggiono | 558.71 mi (899.16 km) |
| Saint-Nazaire to Olbia | 727.25 mi (1,170.39 km) |
| Saint-Nazaire to Oleggio | 528.81 mi (851.04 km) |
| Saint-Nazaire to Olgiate Comasco | 540.86 mi (870.43 km) |
| Saint-Nazaire to Olgiate Olona | 539.76 mi (868.66 km) |
| Saint-Nazaire to Omegna | 513.13 mi (825.81 km) |
| Saint-Nazaire to Opera | 560.22 mi (901.58 km) |
| Saint-Nazaire to Oppeano | 653.17 mi (1,051.17 km) |
| Saint-Nazaire to Orbassano | 491.97 mi (791.76 km) |
| Saint-Nazaire to Orbetello | 736.21 mi (1,184.81 km) |
