| Clonmel to Oerlinghausen | 693.23 mi (1,115.65 km) |
| Clonmel to Oestrich-Winkel | 698.20 mi (1,123.64 km) |
| Clonmel to Offenburg | 737.53 mi (1,186.95 km) |
| Clonmel to Oftersheim | 738.17 mi (1,187.97 km) |
| Clonmel to Ohrdruf | 796.50 mi (1,281.85 km) |
| Clonmel to Ohringen | 780.78 mi (1,256.55 km) |
| Clonmel to Olbernhau | 909.16 mi (1,463.15 km) |
| Clonmel to Olching | 884.78 mi (1,423.91 km) |
| Clonmel to Oldenburg | 666.89 mi (1,073.26 km) |
| Clonmel to Oldenburg in Holstein | 776.65 mi (1,249.90 km) |
| Clonmel to Olfen | 641.94 mi (1,033.10 km) |
| Clonmel to Olpe | 670.93 mi (1,079.76 km) |
| Clonmel to Olsberg | 693.18 mi (1,115.56 km) |
| Clonmel to Oranienburg | 877.36 mi (1,411.97 km) |
| Clonmel to Ortenberg | 734.76 mi (1,182.49 km) |
