| Landgraaf to Oberkirch | 187.98 mi (302.52 km) |
| Landgraaf to Obernburg am Main | 155.71 mi (250.58 km) |
| Landgraaf to Obernkirchen | 162.40 mi (261.35 km) |
| Landgraaf to Oberschleissheim | 308.52 mi (496.51 km) |
| Landgraaf to Oberstdorf | 308.60 mi (496.64 km) |
| Landgraaf to Obertraubling | 304.01 mi (489.26 km) |
| Landgraaf to Obertshausen | 136.26 mi (219.30 km) |
| Landgraaf to Oberursel | 121.95 mi (196.27 km) |
| Landgraaf to Ochsenfurt | 198.28 mi (319.11 km) |
| Landgraaf to Ochsenhausen | 263.22 mi (423.62 km) |
| Landgraaf to Ochtrup | 102.56 mi (165.06 km) |
| Landgraaf to Odenthal | 48.08 mi (77.37 km) |
| Landgraaf to Oelde | 111.57 mi (179.55 km) |
| Landgraaf to Oelsnitz | 270.84 mi (435.88 km) |
| Landgraaf to Oer-Erkenschwick | 73.19 mi (117.79 km) |
