| Heerenveen to Oberkirch | 319.28 mi (513.83 km) |
| Heerenveen to Obernburg am Main | 255.48 mi (411.16 km) |
| Heerenveen to Obernkirchen | 141.70 mi (228.05 km) |
| Heerenveen to Oberschleissheim | 407.77 mi (656.24 km) |
| Heerenveen to Oberstdorf | 428.19 mi (689.10 km) |
| Heerenveen to Obertraubling | 386.23 mi (621.57 km) |
| Heerenveen to Obertshausen | 234.99 mi (378.18 km) |
| Heerenveen to Oberursel | 221.10 mi (355.83 km) |
| Heerenveen to Ochsenfurt | 289.51 mi (465.92 km) |
| Heerenveen to Ochsenhausen | 380.25 mi (611.96 km) |
| Heerenveen to Ochtrup | 73.69 mi (118.60 km) |
| Heerenveen to Odenthal | 141.67 mi (228.00 km) |
| Heerenveen to Oelde | 121.19 mi (195.04 km) |
| Heerenveen to Oelsnitz | 319.11 mi (513.56 km) |
| Heerenveen to Oer-Erkenschwick | 106.13 mi (170.80 km) |
