Dona Ana Carlota de Mendoça Rolim de Moura Barreto (27 December 1827 in Lisbon, Portugal – 31 December 1893 in Lisbon, Portugal) was a daughter of Infanta Ana de Jesus Maria, Marchioness of Loulé and Nuno José de Moura Barreto, 1st Duke of Loulé, and so a member of a cadet line of the Portuguese royal family. Dona Maria Amália de Mendoça Rolim de Moura Barreto was her sister.
She married Rodrigo de Sousa Coutinho Teixeira de Andrada Barbosa, 3rd Count de Linhares with whom she had 12 children: Ana, Nuno, Vitório, Fernando, Catarina, Nuno the 4th Count of Linhares, Maria Carlota, Rodrigo, Maria Ana, José, Agostinho and Isabel.