| Kouvola to Oegstgeest | 1,030.15 mi (1,657.86 km) |
| Kouvola to Oirschot | 1,038.92 mi (1,671.98 km) |
| Kouvola to Oisterwijk | 1,037.68 mi (1,669.99 km) |
| Kouvola to Oldebroek | 974.06 mi (1,567.60 km) |
| Kouvola to Oldenzaal | 950.06 mi (1,528.97 km) |
| Kouvola to Ommen | 955.41 mi (1,537.59 km) |
| Kouvola to Oosterend | 942.46 mi (1,516.75 km) |
| Kouvola to Oosterhout | 1,044.88 mi (1,681.57 km) |
| Kouvola to Oosterwolde | 936.30 mi (1,506.83 km) |
| Kouvola to Oostzaan | 1,005.49 mi (1,618.18 km) |
| Kouvola to Opmeer | 990.76 mi (1,594.47 km) |
| Kouvola to Oss | 1,019.15 mi (1,640.16 km) |
| Kouvola to Oud-Beijerland | 1,049.99 mi (1,689.80 km) |
| Kouvola to Oudenbosch | 1,057.49 mi (1,701.87 km) |
| Kouvola to Oudewater | 1,026.16 mi (1,651.45 km) |
