Waldau may refer to: Waldau (surname) Waldau (Bern), a psychiatric clinic in Berne, Switzerland Waldau (Burgenlandkreis), a village and a former municipality in Saxony-Anhalt, Germany Waldau (Kassel), in Northern Hesse, near the border with Lower Saxony and Thuringia, Germany Waldau (Titisee-Neustadt), a village in Baden-Württemberg, Germany Waldau (Victoria), a suburb of Melbourne, Australia Waldau (Vojvodina), the German name for the village of Sonta, Serbia