| Trnava to Noventa Vicentina | 357.07 mi (574.66 km) |
| Trnava to Novi di Modena | 398.00 mi (640.53 km) |
| Trnava to Novi Ligure | 486.73 mi (783.31 km) |
| Trnava to Nuoro | 689.46 mi (1,109.58 km) |
| Trnava to Occhiobello | 371.54 mi (597.94 km) |
| Trnava to Oderzo | 299.34 mi (481.75 km) |
| Trnava to Oggiono | 426.76 mi (686.80 km) |
| Trnava to Olbia | 650.23 mi (1,046.45 km) |
| Trnava to Oleggio | 463.27 mi (745.55 km) |
| Trnava to Olgiate Comasco | 443.16 mi (713.19 km) |
| Trnava to Olgiate Olona | 451.51 mi (726.63 km) |
| Trnava to Omegna | 464.50 mi (747.54 km) |
| Trnava to Opera | 445.88 mi (717.57 km) |
| Trnava to Oppeano | 369.74 mi (595.04 km) |
| Trnava to Orbassano | 529.66 mi (852.41 km) |
