Kummerbach
Kummerbach is a water body name:
- Kummerbach (Aitrach) , right tributary of the Aitrach in Aichstetten , Ravensburg district, Baden-Württemberg
- Kummerbach , German name of the Hradčanský potok , left tributary of the Ploučnice , German Polzen or Pulsnitz bei Hradčany , German Kummer , town of Ralsko, Bohemian Leipa district, Reichenberger region, Czech Republic