| Heerenveen to Oerlinghausen | 133.62 mi (215.05 km) |
| Heerenveen to Oestrich-Winkel | 222.36 mi (357.86 km) |
| Heerenveen to Offenburg | 321.86 mi (517.98 km) |
| Heerenveen to Oftersheim | 272.65 mi (438.79 km) |
| Heerenveen to Ohrdruf | 251.67 mi (405.03 km) |
| Heerenveen to Ohringen | 301.75 mi (485.62 km) |
| Heerenveen to Olbernhau | 353.08 mi (568.22 km) |
| Heerenveen to Olching | 404.12 mi (650.36 km) |
| Heerenveen to Oldenburg | 95.67 mi (153.96 km) |
| Heerenveen to Oldenburg in Holstein | 223.19 mi (359.19 km) |
| Heerenveen to Olfen | 104.92 mi (168.85 km) |
| Heerenveen to Olpe | 156.13 mi (251.26 km) |
| Heerenveen to Olsberg | 154.61 mi (248.81 km) |
| Heerenveen to Oranienburg | 304.90 mi (490.69 km) |
| Heerenveen to Ortenberg | 223.65 mi (359.93 km) |
