Breitenburg is an Amt ("collective municipality") in the district of Steinburg, in Schleswig-Holstein, Germany. The seat of the Amt is in Breitenburg. The Amt Breitenburg consists of the following municipalities: Auufer Breitenberg Breitenburg Kollmoor Kronsmoor Lägerdorf Moordiek Münsterdorf Oelixdorf Westermoor Wittenbergen References Ämter in Schleswig-Holstein