| Carrick on Shannon to Oegstgeest | 534.79 mi (860.65 km) |
| Carrick on Shannon to Oirschot | 584.42 mi (940.53 km) |
| Carrick on Shannon to Oisterwijk | 578.29 mi (930.67 km) |
| Carrick on Shannon to Oldebroek | 587.39 mi (945.31 km) |
| Carrick on Shannon to Oldenzaal | 631.82 mi (1,016.81 km) |
| Carrick on Shannon to Ommen | 607.13 mi (977.07 km) |
| Carrick on Shannon to Oosterend | 584.99 mi (941.45 km) |
| Carrick on Shannon to Oosterhout | 563.08 mi (906.19 km) |
| Carrick on Shannon to Oosterwolde | 594.33 mi (956.48 km) |
| Carrick on Shannon to Oostzaan | 546.52 mi (879.54 km) |
| Carrick on Shannon to Opmeer | 544.39 mi (876.11 km) |
| Carrick on Shannon to Oss | 586.45 mi (943.80 km) |
| Carrick on Shannon to Oud-Beijerland | 540.52 mi (869.89 km) |
| Carrick on Shannon to Oudenbosch | 551.20 mi (887.07 km) |
| Carrick on Shannon to Oudewater | 554.54 mi (892.45 km) |
