| Povoa de Varzim to Nuth | 958.81 mi (1,543.06 km) |
| Povoa de Varzim to Oegstgeest | 970.98 mi (1,562.65 km) |
| Povoa de Varzim to Oirschot | 964.83 mi (1,552.74 km) |
| Povoa de Varzim to Oisterwijk | 965.39 mi (1,553.64 km) |
| Povoa de Varzim to Oldebroek | 1,027.52 mi (1,653.63 km) |
| Povoa de Varzim to Oldenzaal | 1,054.42 mi (1,696.93 km) |
| Povoa de Varzim to Ommen | 1,046.80 mi (1,684.66 km) |
| Povoa de Varzim to Oosterend | 1,058.63 mi (1,703.70 km) |
| Povoa de Varzim to Oosterhout | 957.20 mi (1,540.46 km) |
| Povoa de Varzim to Oosterwolde | 1,064.83 mi (1,713.68 km) |
| Povoa de Varzim to Oostzaan | 995.64 mi (1,602.33 km) |
| Povoa de Varzim to Opmeer | 1,010.64 mi (1,626.47 km) |
| Povoa de Varzim to Oss | 983.94 mi (1,583.50 km) |
| Povoa de Varzim to Oud-Beijerland | 951.19 mi (1,530.79 km) |
| Povoa de Varzim to Oudenbosch | 944.18 mi (1,519.52 km) |
