| Weimar to Oerlinghausen | 132.74 mi (213.62 km) |
| Weimar to Oestrich-Winkel | 160.82 mi (258.82 km) |
| Weimar to Offenburg | 230.32 mi (370.67 km) |
| Weimar to Oftersheim | 164.39 mi (264.55 km) |
| Weimar to Ohrdruf | 27.61 mi (44.43 km) |
| Weimar to Ohringen | 147.19 mi (236.87 km) |
| Weimar to Olbernhau | 90.69 mi (145.95 km) |
| Weimar to Olching | 192.31 mi (309.49 km) |
| Weimar to Oldenburg | 199.10 mi (320.42 km) |
| Weimar to Oldenburg in Holstein | 229.88 mi (369.96 km) |
| Weimar to Olfen | 177.11 mi (285.04 km) |
| Weimar to Olpe | 151.47 mi (243.76 km) |
| Weimar to Olsberg | 125.34 mi (201.71 km) |
| Weimar to Oranienburg | 147.25 mi (236.97 km) |
| Weimar to Ortenberg | 108.10 mi (173.97 km) |
