Marie Clotilde Eugénie Alberte Laetitia Geneviève Bonaparte (20 March 1912, Brussels, Belgium – 14 April 1996, Château de la Pommerie, Cendrieux, France) was a French princess of the Bonaparte dynasty, the eldest child of Victor, Prince Napoléon and his wife, Princess Clémentine of Belgium.

Marie Clotilde Bonaparte was born on 20 March 1912, in Brussels, Belgium.

When she was born, her parents were already 50 and 40 years old, respectively, as they had not been allowed to marry each other as long as Clémentine's father, King Leopold II of Belgium, had been alive (he died in 1909).

One of her aunts was Stephanie, once a Crown Princess of Austria-Hungary.

On 17 October 1938, in London, England, she married Count Serge de Witt (30 December 1891 – 21 July 1990, Cendrieux, France),[1] with whom she had ten children: