Seehausen (Altmark) is a Verbandsgemeinde ("collective municipality") in the district of Stendal, in Saxony-Anhalt, Germany. Before 1 January 2010, it was a Verwaltungsgemeinschaft. The seat of the Verbandsgemeinde is in Seehausen.

The Verbandsgemeinde Seehausen (Altmark) consists of the following municipalities:

1. Aland
2. Altmärkische Höhe
3. Altmärkische Wische
4. Seehausen
5. Zehrental