| Odorheiu Secuiesc to Noventa Vicentina | 666.19 mi (1,072.13 km) |
| Odorheiu Secuiesc to Novi di Modena | 702.00 mi (1,129.76 km) |
| Odorheiu Secuiesc to Novi Ligure | 805.01 mi (1,295.54 km) |
| Odorheiu Secuiesc to Nuoro | 901.11 mi (1,450.19 km) |
| Odorheiu Secuiesc to Occhiobello | 669.14 mi (1,076.88 km) |
| Odorheiu Secuiesc to Oderzo | 614.68 mi (989.24 km) |
| Odorheiu Secuiesc to Oggiono | 764.53 mi (1,230.40 km) |
| Odorheiu Secuiesc to Olbia | 871.92 mi (1,403.23 km) |
| Odorheiu Secuiesc to Oleggio | 800.68 mi (1,288.57 km) |
| Odorheiu Secuiesc to Olgiate Comasco | 782.80 mi (1,259.79 km) |
| Odorheiu Secuiesc to Olgiate Olona | 788.38 mi (1,268.78 km) |
| Odorheiu Secuiesc to Omegna | 808.50 mi (1,301.16 km) |
| Odorheiu Secuiesc to Opera | 775.45 mi (1,247.97 km) |
| Odorheiu Secuiesc to Oppeano | 682.67 mi (1,098.65 km) |
| Odorheiu Secuiesc to Orbassano | 860.76 mi (1,385.27 km) |
