| Kajaani to Oegstgeest | 1,174.35 mi (1,889.94 km) |
| Kajaani to Oirschot | 1,192.66 mi (1,919.40 km) |
| Kajaani to Oisterwijk | 1,190.30 mi (1,915.61 km) |
| Kajaani to Oldebroek | 1,124.13 mi (1,809.11 km) |
| Kajaani to Oldenzaal | 1,106.96 mi (1,781.48 km) |
| Kajaani to Ommen | 1,107.87 mi (1,782.95 km) |
| Kajaani to Oosterend | 1,089.01 mi (1,752.59 km) |
| Kajaani to Oosterhout | 1,195.21 mi (1,923.51 km) |
| Kajaani to Oosterwolde | 1,084.24 mi (1,744.91 km) |
| Kajaani to Oostzaan | 1,150.03 mi (1,850.80 km) |
| Kajaani to Opmeer | 1,133.53 mi (1,824.23 km) |
| Kajaani to Oss | 1,172.19 mi (1,886.46 km) |
| Kajaani to Oud-Beijerland | 1,196.59 mi (1,925.73 km) |
| Kajaani to Oudenbosch | 1,206.41 mi (1,941.53 km) |
| Kajaani to Oudewater | 1,173.82 mi (1,889.08 km) |
