| Glasgow to Oerlinghausen | 589.28 mi (948.35 km) |
| Glasgow to Oestrich-Winkel | 649.80 mi (1,045.75 km) |
| Glasgow to Offenburg | 724.44 mi (1,165.87 km) |
| Glasgow to Oftersheim | 698.81 mi (1,124.63 km) |
| Glasgow to Ohrdruf | 707.04 mi (1,137.87 km) |
| Glasgow to Ohringen | 736.56 mi (1,185.39 km) |
| Glasgow to Olbernhau | 807.39 mi (1,299.36 km) |
| Glasgow to Olching | 844.12 mi (1,358.47 km) |
| Glasgow to Oldenburg | 533.22 mi (858.14 km) |
| Glasgow to Oldenburg in Holstein | 606.89 mi (976.70 km) |
| Glasgow to Olfen | 553.46 mi (890.71 km) |
| Glasgow to Olpe | 598.18 mi (962.68 km) |
| Glasgow to Olsberg | 606.63 mi (976.28 km) |
| Glasgow to Oranienburg | 734.58 mi (1,182.20 km) |
| Glasgow to Ortenberg | 668.49 mi (1,075.84 km) |
