Beetzendorf-Diesdorf is a Verbandsgemeinde ("collective municipality") in the Altmarkkreis Salzwedel (district), in Saxony-Anhalt, Germany. Until 1 January 2010, it was a Verwaltungsgemeinschaft. It is situated southwest of Salzwedel. The seat of the Verbandsgemeinde is in Beetzendorf.
The Verbandsgemeinde Beetzendorf-Diesdorf consists of the following municipalities: