Stéphanie Louise Adrienne de Beauharnais (28 August 1789 – 29 January 1860) was a French princess and the Grand Duchess consort of Baden by marriage to Karl, Grand Duke of Baden.

Born in Versailles at the beginning of the French Revolution, Stéphanie was the daughter of Claude de Beauharnais, 2nd Count des Roches-Baritaud (1756–1819).

The marriage resulted in the birth of first her older brother Alberic de Beauharnais (1786–1791) and then Stephanie herself.

Joséphine had affairs with several influential figures of the French Directory, including Paul François Jean Nicolas Barras.

As a prominent member of the new Imperial Family, Stephanie held residence in the Tuileries Palace.

On 25 July 1806 her new grandfather-in-law was named Karl Friedrich, Grand Duke of Baden.

The situation changed somewhat when it became evident that the aging Grand Duke would not live much longer.

[1] On 10 June 1811, Stephanie's husband, Karl, succeeded his grandfather as Grand Duke of Baden.