| Ornskoldsvik to Opwijk | 1,005.76 mi (1,618.62 km) |
| Ornskoldsvik to Ostend | 1,015.46 mi (1,634.22 km) |
| Ornskoldsvik to Oud-Heverlee | 1,004.73 mi (1,616.96 km) |
| Ornskoldsvik to Oud-Turnhout | 968.68 mi (1,558.95 km) |
| Ornskoldsvik to Oudenaarde | 1,024.47 mi (1,648.73 km) |
| Ornskoldsvik to Oudenburg | 1,016.36 mi (1,635.67 km) |
| Ornskoldsvik to Oupeye | 994.56 mi (1,600.60 km) |
| Ornskoldsvik to Overijse | 1,010.38 mi (1,626.04 km) |
| Ornskoldsvik to Overpelt | 966.78 mi (1,555.88 km) |
| Ornskoldsvik to Paal | 982.39 mi (1,581.00 km) |
| Ornskoldsvik to Peer | 971.34 mi (1,563.22 km) |
| Ornskoldsvik to Pepinster | 1,000.43 mi (1,610.03 km) |
| Ornskoldsvik to Peruwelz | 1,045.33 mi (1,682.29 km) |
| Ornskoldsvik to Perwez | 1,014.99 mi (1,633.47 km) |
| Ornskoldsvik to Philippeville | 1,046.48 mi (1,684.14 km) |
