| María del Carmen Sotomayor Elzo | |
| Office: | First Lady of Chile |
| Term Label: | In role |
| Term Start: | 8 March 1831 |
| Term End: | 18 September 1831 |
| President: | Fernando Errázuriz Aldunate |
| Birth Name: | María del Carmen Sotomayor Elzo |
| Birth Place: | Rancagua, Chile |
| Death Place: | Santiago, Chile |
| Children: | 8 |
| Parents: | Francisco Sotomayor Serrano María de la Concepción de Elzo y Ureta |
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.