| Povoa de Varzim to Oerlinghausen | 1,098.36 mi (1,767.64 km) |
| Povoa de Varzim to Oestrich-Winkel | 1,000.80 mi (1,610.63 km) |
| Povoa de Varzim to Offenburg | 949.21 mi (1,527.61 km) |
| Povoa de Varzim to Oftersheim | 1,003.05 mi (1,614.26 km) |
| Povoa de Varzim to Ohrdruf | 1,133.79 mi (1,824.65 km) |
| Povoa de Varzim to Ohringen | 1,035.12 mi (1,665.86 km) |
| Povoa de Varzim to Olbernhau | 1,231.93 mi (1,982.60 km) |
| Povoa de Varzim to Olching | 1,087.11 mi (1,749.54 km) |
| Povoa de Varzim to Oldenburg | 1,132.08 mi (1,821.91 km) |
| Povoa de Varzim to Oldenburg in Holstein | 1,267.25 mi (2,039.45 km) |
| Povoa de Varzim to Olfen | 1,043.83 mi (1,679.89 km) |
| Povoa de Varzim to Olpe | 1,031.74 mi (1,660.43 km) |
| Povoa de Varzim to Olsberg | 1,067.93 mi (1,718.67 km) |
| Povoa de Varzim to Oranienburg | 1,290.96 mi (2,077.60 km) |
| Povoa de Varzim to Ortenberg | 1,053.54 mi (1,695.51 km) |
