| Oisterwijk to Navodari | 1,187.12 mi (1,910.48 km) |
| Oisterwijk to Negresti-Oas | 850.85 mi (1,369.31 km) |
| Oisterwijk to Nehoiu | 1,053.43 mi (1,695.33 km) |
| Oisterwijk to Ocna Mures | 915.72 mi (1,473.71 km) |
| Oisterwijk to Odobesti | 1,070.43 mi (1,722.69 km) |
| Oisterwijk to Odorheiu Secuiesc | 978.15 mi (1,574.18 km) |
| Oisterwijk to Oltenita | 1,115.29 mi (1,794.89 km) |
| Oisterwijk to Onesti | 1,041.37 mi (1,675.92 km) |
| Oisterwijk to Oradea | 812.58 mi (1,307.73 km) |
| Oisterwijk to Orastie | 907.94 mi (1,461.19 km) |
| Oisterwijk to Oravita | 879.23 mi (1,414.98 km) |
| Oisterwijk to Orsova | 920.12 mi (1,480.79 km) |
| Oisterwijk to Otelu Rosu | 886.38 mi (1,426.49 km) |
| Oisterwijk to Otopeni | 1,074.02 mi (1,728.47 km) |
| Oisterwijk to Ovidiu | 1,186.86 mi (1,910.06 km) |
