| Ottersberg to Oria | 957.01 mi (1,540.16 km) |
| Ottersberg to Oristano | 912.01 mi (1,467.74 km) |
| Ottersberg to Orta Nova | 868.63 mi (1,397.92 km) |
| Ottersberg to Orte | 750.13 mi (1,207.21 km) |
| Ottersberg to Ortona | 781.27 mi (1,257.34 km) |
| Ottersberg to Orvieto | 730.12 mi (1,175.02 km) |
| Ottersberg to Orzinuovi | 533.18 mi (858.07 km) |
| Ottersberg to Osimo | 693.34 mi (1,115.82 km) |
| Ottersberg to Ospitaletto | 522.93 mi (841.58 km) |
| Ottersberg to Ostuni | 941.07 mi (1,514.51 km) |
| Ottersberg to Ottaviano | 882.25 mi (1,419.84 km) |
| Ottersberg to Ovada | 585.03 mi (941.51 km) |
| Ottersberg to Ozieri | 864.74 mi (1,391.66 km) |
| Ottersberg to Paceco | 1,057.03 mi (1,701.13 km) |
| Ottersberg to Pachino | 1,167.82 mi (1,879.42 km) |
