| Schmelzbach | |
| Mouth Location: | Sieg |
| Mouth Coordinates: | 50.7802°N 7.4337°W |
| Subdivision Type1: | Country |
| Subdivision Type2: | States |
Schmelzbach (also: Dörfer Bach, Hombach) is a small river of North Rhine-Westphalia, Germany. It flows into the Sieg in Eitorf-Schmelze.