Havelland is a district or county in Brandenburg, Germany. It is bounded by (from the north and clockwise) the districts of Ostprignitz-Ruppin and Oberhavel, the city-state of Berlin, the district of Potsdam-Mittelmark, the city of Brandenburg and the state of Saxony-Anhalt (districts of Jerichower Land and Stendal).

Geographically the Havelland is the region, around which the River Havel flows in a U-shape between Oranienburg to the northeast and Rhinow to the northwest. The northern boundary of the Havelland is formed by the River Rhin and the Rhin Canal. In the history of Brandenburg, the Havelland represents a historic region.