Maria Antonia may refer to:
German royalty
Maria Antonia of Austria (1669–1692) daughter of Holy Roman Emperor Leopold
Duchess Maria Antonia of Bavaria (1724–1780) daughter of Holy Roman Emperor Charles VII
Maria Antonia Ferdinanda of Spain (1729–1785) daughter of Philip V of Spain
Archduchess Maria Antonia of Austria (1755–1793) daughter of Holy Roman Emperor Francis I and Empress Maria Theresa; wife of Louis XVI of France
Archduchess Maria Antonia of Austria (1858–1883) daughter of Ferdinand IV, Grand Duke of Tuscany
Archduchess Maria Antonia of Austria (1874–1891) daughter of Archduke Karl Salvator of Austria
Archduchess Maria Antonia of Austria (1899–1977) daughter of Archduke Leopold Salvator of Austria
Italian royalty
Princess Maria Antonia of Parma (1774–1841) daughter of Ferdinand I of Parma
Princess Maria Antonia of Naples and Sicily (1784–1806) daughter of Ferdinand I of the Two Sicilies
Princess Maria Antonia of the Two Sicilies (1814–1898) daughter of Francis I of the Two Sicilies
Infanta Maria Antonia of Portugal (1862–1959) daughter of Miguel I of Portugal
Maria Antonia of the Two Sicilies (1898–1957) daughter of Prince Ferdinand Pius, Duke of Castro
Others
Maria Antonia Pereira (1700–1760), Spanish founder of the carmelite convent of Santiago de Compostela.
Countess Maria Antonia of Waldstein-Wartenberg (1771–1854) mother of Maria Antonia Koháry de Csábrág
Princess Maria Antonia Koháry (1797–1862) daughter of Ferencz József Koháry de Csábrág
Maria Antonia Braile (fl. 1917), Italian-arbëreshë writer
Maria Antònia Martí, Spanish Catalan linguist
María Antonia García Vidal de Santo Silas or María África Gracia Vidal, the birthnames credited to Maria Montez (1912 – 1951), Dominican actress
Maria Antónia Teixeira Rosa, birthname of Mia Rose (born 1988), English-born singer-songwriter
Toña Is, María Antonia Is Piñera (born 1966), Spanish football manager and former player
Maria Antônia (born 1969), Brazilian politician
Mariantonia Samà
Marie Antoinette (disambiguation)
María Antonieta, name list
María Antonietta, name list
Maria Antonina, name list