Louise Isabelle Alexandrine Augusta, Countess of Sayn-Hachenburg, Burgravine of Kirchberg, full German name: Luise Isabelle Alexandrine Auguste, Gräfin zu Sayn-Hachenburg, Burggräfin von Kirchberg was the Princess consort of Nassau-Weilburg through her marriage to Frederick William, Prince of Nassau-Weilburg.
- Occupation
- aristocrat
- Citizenship
- Duchy of Nassau
- Born
- April 29, 1772, 1772, April 19, 1772
- Died
- January 6, 1827, 1827