| Great Harwood to Oerlinghausen | 478.06 mi (769.37 km) |
| Great Harwood to Oestrich-Winkel | 514.42 mi (827.87 km) |
| Great Harwood to Offenburg | 578.81 mi (931.51 km) |
| Great Harwood to Oftersheim | 561.07 mi (902.96 km) |
| Great Harwood to Ohrdruf | 590.50 mi (950.32 km) |
| Great Harwood to Ohringen | 601.19 mi (967.52 km) |
| Great Harwood to Olbernhau | 698.49 mi (1,124.11 km) |
| Great Harwood to Olching | 708.95 mi (1,140.94 km) |
| Great Harwood to Oldenburg | 438.73 mi (706.07 km) |
| Great Harwood to Oldenburg in Holstein | 539.59 mi (868.39 km) |
| Great Harwood to Olfen | 433.29 mi (697.32 km) |
| Great Harwood to Olpe | 471.67 mi (759.07 km) |
| Great Harwood to Olsberg | 486.77 mi (783.38 km) |
| Great Harwood to Oranienburg | 649.04 mi (1,044.52 km) |
| Great Harwood to Ortenberg | 540.63 mi (870.07 km) |
