Princess Marie of Baden (Marie Amalie; 20 November 1834, in Karlsruhe – 21 November 1899, in Amorbach) was the third daughter and seventh child of Leopold, Grand Duke of Baden (1790–1852) and his wife Princess Sophie of Sweden (1801–65).

She was the third daughter and seventh child of Grand Duke Leopold of Baden and Princess Sophie Wilhelmine of Sweden.

Marie’s father, Grand Duke Leopold, descended from a morganatic branch of the Baden family (his mother was Louise Caroline of Hochberg, a noblewoman) and thus did not have rights to a princely status or the sovereign rights of the House of Zähringen of Baden.

However, in 1830 he ascended to the throne of the Grand Duchy of Baden after the main male line of his family died out.

Prince Carl of Leiningen was the maternal half-brother of Queen Victoria of the United Kingdom.