Princess Béatrice Marie Caroline Louise Françoise of Bourbon-Two Sicilies (born 16 June 1950 in Saint-Raphaël, Var, France) is the eldest daughter of Prince Ferdinand, Duke of Castro, Castro-line claimant to the Head of the House of Bourbon-Two Sicilies, and his wife Chantal de Chevron-Villette.

Her younger brother, Prince Carlo, Duke of Castro, is the current Castro-line claimant to the headship of the House of Bourbon-Two Sicilies. Since 2014, Béatrice has served as Grand Chancellor of the Sacred Military Constantinian Order of Saint George.

Béatrice married Charles Napoléon, eldest son of Prince Louis Napoléon and his wife Alix de Foresta, on 19 December 1978 in Paris, France. Charles was the great-great-grand-nephew of Napoleon I of France, founder of the Imperial House of France. The couple divorced in 1989.

Béatrice and Charles had two children: