| Princess Wilhelmine Louise | |
| Princess Reuss of Greiz | |
| House: | Nassau-Weilburg |
| Father: | Charles Christian, Prince of Nassau-Weilburg |
| Mother: | Princess Carolina of Orange-Nassau |
| Birth Date: | 28 September 1765 |
| Birth Place: | The Hague, Dutch Republic |
| Death Place: | Greiz, Principality of Reuss-Greiz |
Wilhelmine Louise, Princess Reuss of Greiz, born as Princess Wilhelmine Luise of Nassau-Weilburg (28 September 1765, in The Hague – 10 October 1837, in Greiz) was a German princess. She was a Princess-consort of Reuss of Greiz from 1800 until 1817, and was a daughter of Prince Charles Christian, Duke of Nassau-Weilburg and Carolina of Orange-Nassau, daughter of William IV, Prince of Orange.
Louise married on 9 January 1786 in Kirchheimbolanden to Heinrich XIII, future Prince Reuss of Greiz (1747–1817), third child of Heinrich XI, Prince Reuss of Greiz, and his wife, Countess Conradine Reuss of Köstritz (daughter of Heinrich XXIV, Count Reuss of Köstritz and Baroness Marie Eleonore Emma of Promnitz-Dittersbach).
They had four children: