| Grefrath to Northeim | 159.41 mi (256.55 km) |
| Grefrath to Norvenich | 39.41 mi (63.43 km) |
| Grefrath to Nossen | 301.87 mi (485.82 km) |
| Grefrath to Nottuln | 59.66 mi (96.01 km) |
| Grefrath to Numbrecht | 60.01 mi (96.58 km) |
| Grefrath to Nuremberg | 245.78 mi (395.55 km) |
| Grefrath to Nurtingen | 229.20 mi (368.87 km) |
| Grefrath to Nussloch | 173.50 mi (279.23 km) |
| Grefrath to Ober-Ramstadt | 148.16 mi (238.44 km) |
| Grefrath to Oberasbach | 242.60 mi (390.43 km) |
| Grefrath to Oberderdingen | 191.10 mi (307.55 km) |
| Grefrath to Oberhaching | 327.79 mi (527.53 km) |
| Grefrath to Oberhausen | 25.38 mi (40.84 km) |
| Grefrath to Oberhausen-Rheinhausen | 171.81 mi (276.50 km) |
| Grefrath to Oberkirch | 208.58 mi (335.68 km) |
