| Diepholz to Novi di Modena | 545.20 mi (877.41 km) |
| Diepholz to Novi Ligure | 542.57 mi (873.18 km) |
| Diepholz to Nuoro | 850.40 mi (1,368.59 km) |
| Diepholz to Occhiobello | 550.64 mi (886.16 km) |
| Diepholz to Oderzo | 506.84 mi (815.67 km) |
| Diepholz to Oggiono | 473.54 mi (762.09 km) |
| Diepholz to Olbia | 809.47 mi (1,302.72 km) |
| Diepholz to Oleggio | 484.29 mi (779.40 km) |
| Diepholz to Olgiate Comasco | 472.25 mi (760.01 km) |
| Diepholz to Olgiate Olona | 482.40 mi (776.35 km) |
| Diepholz to Omegna | 464.94 mi (748.25 km) |
| Diepholz to Opera | 500.58 mi (805.61 km) |
| Diepholz to Oppeano | 520.64 mi (837.90 km) |
| Diepholz to Orbassano | 526.46 mi (847.26 km) |
| Diepholz to Orbetello | 714.78 mi (1,150.32 km) |
