| North Walsham to Oberkirch | 416.52 mi (670.32 km) |
| North Walsham to Obernburg am Main | 392.79 mi (632.13 km) |
| North Walsham to Obernkirchen | 326.97 mi (526.21 km) |
| North Walsham to Oberschleissheim | 546.59 mi (879.65 km) |
| North Walsham to Oberstdorf | 542.46 mi (873.00 km) |
| North Walsham to Obertraubling | 539.32 mi (867.95 km) |
| North Walsham to Obertshausen | 372.66 mi (599.74 km) |
| North Walsham to Oberursel | 357.99 mi (576.13 km) |
| North Walsham to Ochsenfurt | 434.36 mi (699.03 km) |
| North Walsham to Ochsenhausen | 498.99 mi (803.05 km) |
| North Walsham to Ochtrup | 247.67 mi (398.58 km) |
| North Walsham to Odenthal | 273.53 mi (440.21 km) |
| North Walsham to Oelde | 293.54 mi (472.41 km) |
| North Walsham to Oelsnitz | 490.84 mi (789.93 km) |
| North Walsham to Oer-Erkenschwick | 261.12 mi (420.23 km) |
