| Martellago to Oberkirch | 281.67 mi (453.31 km) |
| Martellago to Obernburg am Main | 328.06 mi (527.96 km) |
| Martellago to Obernkirchen | 484.26 mi (779.34 km) |
| Martellago to Oberschleissheim | 188.85 mi (303.92 km) |
| Martellago to Oberstdorf | 156.69 mi (252.17 km) |
| Martellago to Obertraubling | 236.24 mi (380.19 km) |
| Martellago to Obertshausen | 348.24 mi (560.43 km) |
| Martellago to Oberursel | 361.91 mi (582.43 km) |
| Martellago to Ochsenfurt | 299.75 mi (482.40 km) |
| Martellago to Ochsenhausen | 203.36 mi (327.28 km) |
| Martellago to Ochtrup | 512.18 mi (824.27 km) |
| Martellago to Odenthal | 444.06 mi (714.65 km) |
| Martellago to Oelde | 471.07 mi (758.12 km) |
| Martellago to Oelsnitz | 336.48 mi (541.52 km) |
| Martellago to Oer-Erkenschwick | 476.87 mi (767.44 km) |
