| Zaandam to Orbetello | 751.41 mi (1,209.27 km) |
| Zaandam to Oria | 1,021.89 mi (1,644.57 km) |
| Zaandam to Oristano | 883.74 mi (1,422.23 km) |
| Zaandam to Orta Nova | 921.02 mi (1,482.24 km) |
| Zaandam to Orte | 773.19 mi (1,244.33 km) |
| Zaandam to Ortona | 826.44 mi (1,330.03 km) |
| Zaandam to Orvieto | 751.17 mi (1,208.90 km) |
| Zaandam to Orzinuovi | 537.98 mi (865.79 km) |
| Zaandam to Osimo | 735.45 mi (1,183.60 km) |
| Zaandam to Ospitaletto | 530.95 mi (854.48 km) |
| Zaandam to Ostuni | 1,006.84 mi (1,620.36 km) |
| Zaandam to Ottaviano | 920.02 mi (1,480.63 km) |
| Zaandam to Ovada | 565.86 mi (910.67 km) |
| Zaandam to Ozieri | 841.95 mi (1,354.99 km) |
| Zaandam to Paceco | 1,065.25 mi (1,714.35 km) |
