Princess Maria Antonietta of Bourbon-Two Sicilies (Maria Antonietta Giuseppina Leopoldina; 16 March 1851 – 12 September 1938) was a Princess of Bourbon-Two Sicilies by birth and by her marriage to Prince Alfonso, Count of Caserta, claimant to the defunct throne of the Two Sicilies.

Maria Antonietta was the eldest daughter of Prince Francis, Count of Trapani (son of Francis I of the Two Sicilies) and his wife (and niece) Archduchess Maria Isabella of Austria, Princess of Tuscany.

She was an elder sister of Maria Carolina, Countess Andrzej Zamoyski.

Maria Antonietta married her first cousin Prince Alfonso, Count of Caserta, son of Ferdinand II of the Two Sicilies and his wife Maria Theresa of Austria, on 8 June 1868 in Rome.

Antonietta and Alfonso had twelve children: Media related to Princess Antonietta of Bourbon-Two Sicilies at Wikimedia Commons