| Gioia del Colle to Oerlinghausen | 865.02 mi (1,392.12 km) |
| Gioia del Colle to Oestrich-Winkel | 768.14 mi (1,236.21 km) |
| Gioia del Colle to Offenburg | 689.25 mi (1,109.25 km) |
| Gioia del Colle to Oftersheim | 717.74 mi (1,155.09 km) |
| Gioia del Colle to Ohrdruf | 753.82 mi (1,213.15 km) |
| Gioia del Colle to Ohringen | 683.88 mi (1,100.60 km) |
| Gioia del Colle to Olbernhau | 703.26 mi (1,131.79 km) |
| Gioia del Colle to Olching | 581.02 mi (935.06 km) |
| Gioia del Colle to Oldenburg | 945.15 mi (1,521.07 km) |
| Gioia del Colle to Oldenburg in Holstein | 973.61 mi (1,566.87 km) |
| Gioia del Colle to Olfen | 879.84 mi (1,415.96 km) |
| Gioia del Colle to Olpe | 829.07 mi (1,334.26 km) |
| Gioia del Colle to Olsberg | 832.62 mi (1,339.98 km) |
| Gioia del Colle to Oranienburg | 843.99 mi (1,358.27 km) |
| Gioia del Colle to Ortenberg | 761.29 mi (1,225.18 km) |
