Duchess Elisabeth Alexandrine Constance of Württemberg (27 February 1802 in Würzau, Courland Governorate – 5 December 1864, in Karlsruhe) was a daughter of Duke Louis of Württemberg and Princess Henriette of Nassau-Weilburg.

Elisabeth was one of five children born to Duke Louis of Württemberg and his second wife Princess Henriette of Nassau-Weilburg.

She was tutored by her governess, the known memoirist Alexandrine des Écherolles, who described her pupils in her memoirs.

Ten years older than she was, he was the second son of Charles Frederick, Grand Duke of Baden and his second wife Luise Karoline Geyer von Geyersberg.

Due to the low birth rank of his mother, William had no succession rights for a time to the Grand Duchy of Baden (until his brother succeeded as Leopold I, Grand Duke of Baden earlier that year).