| Oshkosh to Oerlinghausen | 4,183.76 mi (6,733.11 km) |
| Oshkosh to Oestrich-Winkel | 4,238.51 mi (6,821.23 km) |
| Oshkosh to Offenburg | 4,298.08 mi (6,917.09 km) |
| Oshkosh to Oftersheim | 4,285.15 mi (6,896.28 km) |
| Oshkosh to Ohrdruf | 4,302.02 mi (6,923.43 km) |
| Oshkosh to Ohringen | 4,325.35 mi (6,960.98 km) |
| Oshkosh to Olbernhau | 4,399.01 mi (7,079.53 km) |
| Oshkosh to Olching | 4,433.12 mi (7,134.42 km) |
| Oshkosh to Oldenburg | 4,121.93 mi (6,633.61 km) |
| Oshkosh to Oldenburg in Holstein | 4,166.17 mi (6,704.80 km) |
| Oshkosh to Olfen | 4,148.54 mi (6,676.42 km) |
| Oshkosh to Olpe | 4,192.01 mi (6,746.38 km) |
| Oshkosh to Olsberg | 4,201.82 mi (6,762.18 km) |
| Oshkosh to Oranienburg | 4,307.29 mi (6,931.92 km) |
| Oshkosh to Ortenberg | 4,262.07 mi (6,859.13 km) |
