| Saarbrucken to Oerlinghausen | 202.50 mi (325.89 km) |
| Saarbrucken to Oestrich-Winkel | 69.35 mi (111.61 km) |
| Saarbrucken to Offenburg | 67.87 mi (109.22 km) |
| Saarbrucken to Oftersheim | 72.02 mi (115.91 km) |
| Saarbrucken to Ohrdruf | 198.94 mi (320.16 km) |
| Saarbrucken to Ohringen | 112.85 mi (181.61 km) |
| Saarbrucken to Olbernhau | 298.36 mi (480.17 km) |
| Saarbrucken to Olching | 209.30 mi (336.83 km) |
| Saarbrucken to Oldenburg | 275.25 mi (442.97 km) |
| Saarbrucken to Oldenburg in Holstein | 387.32 mi (623.32 km) |
| Saarbrucken to Olfen | 172.41 mi (277.47 km) |
| Saarbrucken to Olpe | 128.63 mi (207.01 km) |
| Saarbrucken to Olsberg | 160.23 mi (257.86 km) |
| Saarbrucken to Oranienburg | 364.11 mi (585.98 km) |
| Saarbrucken to Ortenberg | 120.07 mi (193.23 km) |
