| Gujan-Mestras to Obernburg am Main | 597.95 mi (962.31 km) |
| Gujan-Mestras to Obernkirchen | 702.76 mi (1,130.99 km) |
| Gujan-Mestras to Oberschleissheim | 650.25 mi (1,046.48 km) |
| Gujan-Mestras to Oberstdorf | 576.43 mi (927.67 km) |
| Gujan-Mestras to Obertraubling | 692.45 mi (1,114.39 km) |
| Gujan-Mestras to Obertshausen | 595.41 mi (958.23 km) |
| Gujan-Mestras to Oberursel | 591.79 mi (952.39 km) |
| Gujan-Mestras to Ochsenfurt | 626.50 mi (1,008.26 km) |
| Gujan-Mestras to Ochsenhausen | 575.73 mi (926.55 km) |
| Gujan-Mestras to Ochtrup | 644.76 mi (1,037.64 km) |
| Gujan-Mestras to Odenthal | 581.87 mi (936.43 km) |
| Gujan-Mestras to Oelde | 652.56 mi (1,050.20 km) |
| Gujan-Mestras to Oelsnitz | 733.68 mi (1,180.75 km) |
| Gujan-Mestras to Oer-Erkenschwick | 616.74 mi (992.55 km) |
| Gujan-Mestras to Oerlinghausen | 674.59 mi (1,085.65 km) |
