| Ratzeburg to Oerlinghausen | 147.99 mi (238.16 km) |
| Ratzeburg to Oestrich-Winkel | 281.25 mi (452.63 km) |
| Ratzeburg to Offenburg | 381.62 mi (614.15 km) |
| Ratzeburg to Oftersheim | 313.24 mi (504.10 km) |
| Ratzeburg to Ohrdruf | 198.43 mi (319.34 km) |
| Ratzeburg to Ohringen | 315.53 mi (507.80 km) |
| Ratzeburg to Olbernhau | 236.40 mi (380.44 km) |
| Ratzeburg to Olching | 380.81 mi (612.85 km) |
| Ratzeburg to Oldenburg | 111.26 mi (179.05 km) |
| Ratzeburg to Oldenburg in Holstein | 41.81 mi (67.28 km) |
| Ratzeburg to Olfen | 196.53 mi (316.29 km) |
| Ratzeburg to Olpe | 222.49 mi (358.06 km) |
| Ratzeburg to Olsberg | 188.24 mi (302.94 km) |
| Ratzeburg to Oranienburg | 121.85 mi (196.10 km) |
| Ratzeburg to Ortenberg | 242.01 mi (389.48 km) |
