Otterbach (disambiguation)
Otterbach is a municipality in Rhineland-Palatinate, Germany.
Otterbach may also refer to:
Populated places
- Otterbach (Verbandsgemeinde), a former Verbandsgemeinde ("collective municipality") in Rhineland-Palatinate, Germany
 - Otterbach-Otterberg, a current Verbandsgemeinde ("collective municipality") in Rhineland-Palatinate, Germany
 - Kačji Potok (German name Otterbach), a settlement in the municipality of Kočevje in southern Slovenia
 - Otterbach, a former municipality today part of Linden, Switzerland
 
Rivers
- Otterbach (Bühler), a river of Baden-Württemberg, Germany, tributary of the Bühler
 - Otterbach (Rhine), a river of Rhineland-Palatinate, Germany, tributary of the Upper Rhine
 - Otterbach (Inde), a river of North Rhine-Westphalia, Germany, tributary of the Inde
 - Otterbach (Weser), a river of North Rhine-Westphalia and Lower Saxony, Germany, tributary of the Weser
 - Otterbach (Danube), a river of Bavaria, Germany, tributary of the Danube
 - Otterbach (Klosterbeurener Bach), a river of Bavaria, Germany, tributary of the Klosterbeurener Bach
 - Otterbach (Pulsnitz), a river of Saxony, Germany, tributary of the Pulsnitz