| Melbbach | |
| Mouth Location: | Rhine |
| Mouth Coordinates: | 50.729°N 7.1116°W |
| Subdivision Type1: | Country |
| Subdivision Type2: | State |
| Length: | 6.1km (03.8miles) |
Melbbach (also: Engelbach or Engelsbach) is a small river of North Rhine-Westphalia, Germany. It flows into the Rhine in Bonn.