| Zierikzee to Oerlinghausen | 204.07 mi (328.43 km) |
| Zierikzee to Oestrich-Winkel | 211.51 mi (340.40 km) |
| Zierikzee to Offenburg | 282.96 mi (455.38 km) |
| Zierikzee to Oftersheim | 258.51 mi (416.03 km) |
| Zierikzee to Ohrdruf | 300.16 mi (483.06 km) |
| Zierikzee to Ohringen | 298.29 mi (480.06 km) |
| Zierikzee to Olbernhau | 413.38 mi (665.27 km) |
| Zierikzee to Olching | 406.09 mi (653.54 km) |
| Zierikzee to Oldenburg | 208.48 mi (335.52 km) |
| Zierikzee to Oldenburg in Holstein | 342.63 mi (551.40 km) |
| Zierikzee to Olfen | 148.57 mi (239.11 km) |
| Zierikzee to Olpe | 174.63 mi (281.04 km) |
| Zierikzee to Olsberg | 197.49 mi (317.82 km) |
| Zierikzee to Oranienburg | 401.69 mi (646.46 km) |
| Zierikzee to Ortenberg | 240.59 mi (387.19 km) |
