Arbach is an Ortsgemeinde – a municipality belonging to a Verbandsgemeinde, a kind of collective municipality – in the Vulkaneifel district in Rhineland-Palatinate, Germany. It belongs to the Verbandsgemeinde of Kelberg, whose seat is in the like-named municipality.
Arbach (Neckar) is a river of Baden-Württemberg, Germany.
Arbach (Schwäbische Rezat) is a river of Bavaria, Germany.
Arbach (Wildebach) is a river of North Rhine-Westphalia, Germany.