| Havant to Oerlinghausen | 422.67 mi (680.22 km) |
| Havant to Oestrich-Winkel | 399.56 mi (643.03 km) |
| Havant to Offenburg | 431.19 mi (693.94 km) |
| Havant to Oftersheim | 435.83 mi (701.39 km) |
| Havant to Ohrdruf | 510.70 mi (821.89 km) |
| Havant to Ohringen | 478.71 mi (770.41 km) |
| Havant to Olbernhau | 624.93 mi (1,005.72 km) |
| Havant to Olching | 580.49 mi (934.20 km) |
| Havant to Oldenburg | 421.74 mi (678.73 km) |
| Havant to Oldenburg in Holstein | 551.41 mi (887.41 km) |
| Havant to Olfen | 366.29 mi (589.49 km) |
| Havant to Olpe | 383.88 mi (617.80 km) |
| Havant to Olsberg | 411.92 mi (662.92 km) |
| Havant to Oranienburg | 620.55 mi (998.68 km) |
| Havant to Ortenberg | 441.24 mi (710.11 km) |
