| Barntrup to Octeville | 496.66 mi (799.30 km) |
| Barntrup to Oignies | 284.73 mi (458.23 km) |
| Barntrup to Oissel | 395.73 mi (636.87 km) |
| Barntrup to Olivet | 428.63 mi (689.82 km) |
| Barntrup to Ollioules | 629.60 mi (1,013.24 km) |
| Barntrup to Olonne-sur-Mer | 617.59 mi (993.92 km) |
| Barntrup to Oloron-Sainte-Marie | 756.27 mi (1,217.10 km) |
| Barntrup to Onet Village | 605.52 mi (974.50 km) |
| Barntrup to Onnaing | 263.10 mi (423.42 km) |
| Barntrup to Orange | 577.10 mi (928.75 km) |
| Barntrup to Orchies | 274.53 mi (441.81 km) |
| Barntrup to Orleans | 426.50 mi (686.38 km) |
| Barntrup to Orly | 371.12 mi (597.27 km) |
| Barntrup to Ormesson-sur-Marne | 364.18 mi (586.09 km) |
| Barntrup to Orsay | 380.36 mi (612.14 km) |
