María del Carmen Sotomayor Elzo

María del Carmen Sotomayor Elzo (c.1780 – 24 September 1852) was First Lady of Chile.

She was born in Rancagua, the daughter of Francisco Sotomayor Serrano and of María de la Concepción de Elzo y Ureta, woman of Basque descent. She married Fernando de Errázuriz y Martínez de Aldunate, served as provisional president of Chile in 1831, in Santiago on 2 October 1801, with whom he had 8 children. She died in the same city in 1852.