Museu Casa Maria Mariá, Historical museum in União dos Palmares, Brazil

Museu Casa Maria Mariá occupies the townhouse in União dos Palmares where the teacher, historian, journalist and folklorist Maria Mariá de Castro Sarmento (1917–1993) lived. Its rooms hold the furniture, utensils, handicrafts, press articles and photographs she collected and catalogued, forming the estate now on display. The house was founded as a museum in 1993 and has been run by the municipal culture department since 2011.

Founded in 1993 as a cultural society maintained by Maria Mariá's family in the house where she lived, the museum became municipally managed in 2011 after a major renovation by the city government. In 2013 it took part in the 7th Primavera dos Museus, a programme run by the Brazilian Institute of Museums.

Maria Mariá was one of the first women in Alagoas to embrace feminism, and the first in the city to wear trousers and a swimsuit. As a teacher she abolished the palmatória and the pebbles pupils had to hand in before using the toilet. She also opposed the demolition of the old matriz de Santa Maria Madalena.

The museum occupies the house where Maria Mariá lived, in União dos Palmares, Alagoas. Since 2011 it has been run by the municipal Department of Culture, after a major renovation carried out by the town hall. The building is a historic townhouse, so visitors should confirm opening times with the municipality before travelling.

The house where Maria Mariá lived keeps the collection she assembled herself: furniture, utensils, handicrafts, press articles and photographs of the first half of the 20th century. Among the images are popular festivals, clothing and habits, plus the political, intellectual and religious figures of União dos Palmares.