| Martin to Oberkirch | 494.23 mi (795.38 km) |
| Martin to Obernburg am Main | 442.23 mi (711.70 km) |
| Martin to Obernkirchen | 482.44 mi (776.41 km) |
| Martin to Oberschleissheim | 340.24 mi (547.57 km) |
| Martin to Oberstdorf | 413.58 mi (665.60 km) |
| Martin to Obertraubling | 306.08 mi (492.59 km) |
| Martin to Obertshausen | 456.99 mi (735.46 km) |
| Martin to Oberursel | 469.17 mi (755.05 km) |
| Martin to Ochsenfurt | 400.32 mi (644.25 km) |
| Martin to Ochsenhausen | 415.73 mi (669.04 km) |
| Martin to Ochtrup | 557.21 mi (896.74 km) |
| Martin to Odenthal | 540.47 mi (869.80 km) |
| Martin to Oelde | 510.45 mi (821.49 km) |
| Martin to Oelsnitz | 315.62 mi (507.95 km) |
| Martin to Oer-Erkenschwick | 543.74 mi (875.07 km) |
