| Haarlem to Noventa Vicentina | 581.76 mi (936.25 km) |
| Haarlem to Novi di Modena | 590.83 mi (950.86 km) |
| Haarlem to Novi Ligure | 559.70 mi (900.75 km) |
| Haarlem to Nuoro | 862.86 mi (1,388.63 km) |
| Haarlem to Occhiobello | 604.65 mi (973.10 km) |
| Haarlem to Oderzo | 577.76 mi (929.81 km) |
| Haarlem to Oggiono | 503.23 mi (809.88 km) |
| Haarlem to Olbia | 824.72 mi (1,327.26 km) |
| Haarlem to Oleggio | 502.34 mi (808.45 km) |
| Haarlem to Olgiate Comasco | 496.17 mi (798.51 km) |
| Haarlem to Olgiate Olona | 504.37 mi (811.70 km) |
| Haarlem to Omegna | 480.59 mi (773.43 km) |
| Haarlem to Opera | 526.32 mi (847.02 km) |
| Haarlem to Oppeano | 572.38 mi (921.16 km) |
| Haarlem to Orbassano | 526.44 mi (847.22 km) |
