| Naaldwijk to Orbetello | 736.67 mi (1,185.55 km) |
| Naaldwijk to Oria | 1,017.54 mi (1,637.57 km) |
| Naaldwijk to Oristano | 860.92 mi (1,385.51 km) |
| Naaldwijk to Orta Nova | 914.40 mi (1,471.59 km) |
| Naaldwijk to Orte | 761.25 mi (1,225.12 km) |
| Naaldwijk to Ortona | 818.82 mi (1,317.76 km) |
| Naaldwijk to Orvieto | 738.99 mi (1,189.28 km) |
| Naaldwijk to Orzinuovi | 524.75 mi (844.50 km) |
| Naaldwijk to Osimo | 727.86 mi (1,171.37 km) |
| Naaldwijk to Ospitaletto | 518.51 mi (834.46 km) |
| Naaldwijk to Ostuni | 1,002.76 mi (1,613.79 km) |
| Naaldwijk to Ottaviano | 910.25 mi (1,464.91 km) |
| Naaldwijk to Ovada | 547.30 mi (880.79 km) |
| Naaldwijk to Ozieri | 820.38 mi (1,320.28 km) |
| Naaldwijk to Paceco | 1,048.72 mi (1,687.75 km) |
