Leezen is an Amt ("collective municipality") in the district of Segeberg, in Schleswig-Holstein, Germany. The seat of the Amt is in Leezen.The Amt Leezen consists of the following municipalities:Bark Bebensee Fredesdorf Groß Niendorf Högersdorf Kükels LeezenMözen Neversdorf Schwissel Todesfelde Wittenborn