| Grubebach | |
| Source1 Coordinates: | 51.7992°N 8.6203°W |
| Mouth Location: | Ems |
| Mouth Coordinates: | 51.8198°N 8.361°W |
| Subdivision Type1: | Country |
| Length Km: | 22.2 |
Grubebach (in its lower course: Bokel-Mastholter Hauptkanal) is a river of North Rhine-Westphalia, Germany. It flows into the Ems near Rheda-Wiedenbrück.