| Rehburg-Loccum to Oerlinghausen | 40.54 mi (65.25 km) |
| Rehburg-Loccum to Oestrich-Winkel | 177.21 mi (285.19 km) |
| Rehburg-Loccum to Offenburg | 280.91 mi (452.09 km) |
| Rehburg-Loccum to Oftersheim | 214.54 mi (345.27 km) |
| Rehburg-Loccum to Ohrdruf | 129.79 mi (208.87 km) |
| Rehburg-Loccum to Ohringen | 224.97 mi (362.05 km) |
| Rehburg-Loccum to Olbernhau | 215.82 mi (347.33 km) |
| Rehburg-Loccum to Olching | 308.05 mi (495.75 km) |
| Rehburg-Loccum to Oldenburg | 63.38 mi (102.00 km) |
| Rehburg-Loccum to Oldenburg in Holstein | 145.23 mi (233.72 km) |
| Rehburg-Loccum to Olfen | 92.59 mi (149.01 km) |
| Rehburg-Loccum to Olpe | 115.22 mi (185.43 km) |
| Rehburg-Loccum to Olsberg | 82.09 mi (132.11 km) |
| Rehburg-Loccum to Oranienburg | 170.35 mi (274.15 km) |
| Rehburg-Loccum to Ortenberg | 144.90 mi (233.19 km) |
