| Grants Pass to Oerlinghausen | 5,311.10 mi (8,547.39 km) |
| Grants Pass to Oestrich-Winkel | 5,406.88 mi (8,701.53 km) |
| Grants Pass to Offenburg | 5,492.58 mi (8,839.45 km) |
| Grants Pass to Oftersheim | 5,457.54 mi (8,783.05 km) |
| Grants Pass to Ohrdruf | 5,425.86 mi (8,732.08 km) |
| Grants Pass to Ohringen | 5,490.24 mi (8,835.68 km) |
| Grants Pass to Olbernhau | 5,495.38 mi (8,843.95 km) |
| Grants Pass to Olching | 5,593.16 mi (9,001.33 km) |
| Grants Pass to Oldenburg | 5,233.30 mi (8,422.18 km) |
| Grants Pass to Oldenburg in Holstein | 5,227.93 mi (8,413.54 km) |
| Grants Pass to Olfen | 5,294.12 mi (8,520.06 km) |
| Grants Pass to Olpe | 5,344.89 mi (8,601.77 km) |
| Grants Pass to Olsberg | 5,341.87 mi (8,596.91 km) |
| Grants Pass to Oranienburg | 5,369.78 mi (8,641.83 km) |
| Grants Pass to Ortenberg | 5,412.75 mi (8,710.98 km) |
