Infanta Maria das Neves of Portugal (Portuguese: Maria das Neves Isabel Eulália Carlota Adelaide Micaela Gabriela Rafaela Gonzaga de Paula de Assis Inês Sofia Romana, Infanta de Portugal) (5 August 1852 – 15 February 1941) was the eldest child and daughter of exiled Miguel I of Portugal and Adelaide of Löwenstein.

[1] Maria was born in Kleinheubach, an Infanta of Portugal and member of the House of Braganza by birth.

Through her marriage to Infante Alfonso Carlos, Duke of San Jaime, Carlist claimant to the Spanish throne, Maria was titular Queen consort of Spain, France, and Navarre.

Maria married Infante Alfonso Carlos, Duke of San Jaime, second son of Infante Juan, Count of Montizón and his wife Archduchess Maria Beatrix of Austria-Este, on 26 April 1871 in Kleinheubach.

[1] Alfonso Carlos was her first cousin once removed, as Maria's father (Miguel I of Portugal) and his paternal grandmother (Infanta Maria Francisca of Portugal) were siblings.