| Ottweiler to Oerlinghausen | 191.27 mi (307.81 km) |
| Ottweiler to Oestrich-Winkel | 57.47 mi (92.48 km) |
| Ottweiler to Offenburg | 71.26 mi (114.69 km) |
| Ottweiler to Oftersheim | 63.80 mi (102.68 km) |
| Ottweiler to Ohrdruf | 187.53 mi (301.79 km) |
| Ottweiler to Ohringen | 105.79 mi (170.25 km) |
| Ottweiler to Olbernhau | 288.03 mi (463.54 km) |
| Ottweiler to Olching | 205.38 mi (330.52 km) |
| Ottweiler to Oldenburg | 264.87 mi (426.27 km) |
| Ottweiler to Oldenburg in Holstein | 375.86 mi (604.88 km) |
| Ottweiler to Olfen | 162.65 mi (261.76 km) |
| Ottweiler to Olpe | 117.75 mi (189.51 km) |
| Ottweiler to Olsberg | 148.81 mi (239.49 km) |
| Ottweiler to Oranienburg | 352.31 mi (566.98 km) |
| Ottweiler to Ortenberg | 108.37 mi (174.41 km) |
