| Haarlem to Orzesze | 628.37 mi (1,011.26 km) |
| Haarlem to Osowa | 586.14 mi (943.31 km) |
| Haarlem to Ostroda | 642.14 mi (1,033.43 km) |
| Haarlem to Ostroleka | 708.50 mi (1,140.23 km) |
| Haarlem to Ostrow Mazowiecka | 723.57 mi (1,164.48 km) |
| Haarlem to Ostrow Wielkopolski | 562.08 mi (904.58 km) |
| Haarlem to Ostrowiec Swietokrzyski | 723.93 mi (1,165.05 km) |
| Haarlem to Ostrzeszow | 570.12 mi (917.51 km) |
| Haarlem to Oswiecim | 650.65 mi (1,047.11 km) |
| Haarlem to Otwock | 702.28 mi (1,130.22 km) |
| Haarlem to Ozarow Mazowiecki | 681.76 mi (1,097.18 km) |
| Haarlem to Ozimek | 594.62 mi (956.95 km) |
| Haarlem to Ozorkow | 620.35 mi (998.35 km) |
| Haarlem to Pabianice | 628.15 mi (1,010.90 km) |
| Haarlem to Parczew | 775.13 mi (1,247.46 km) |
