Louise Henriette Wilhelmine of Brandenburg-Schwedt (24 September 1750 in Różanki – 21 December 1811 in Dessau), was a Margravine of Brandenburg by birth and by marriage a princess, and later Duchess, of Anhalt-Dessau.

By birth, Louise Henriette belonged to Brandenburg-Schwedt line of the House of Hohenzollern.

She was educated in Prussia, together with her sister, Friederike Charlotte of Brandenburg-Schwedt.

Between 1760 and 1762, the mathematician Leonhard Euler sent her sister numerous letters in French about mathematical and philosophical subjects.

She married her cousin Leopold III, Prince of Anhalt-Dessau on 25 July 1767 in Charlottenburg.