Marta Canessa de Monserrat (born December 16, 1936 Montevideo) is a Uruguayan historian, academic and writer.
Canessa, the wife of former President Julio María Sanguinetti, served as the First Lady of Uruguay for two non-consecutive terms - 1985 to 1990 and 1995 until 2000.
Canessa was member of the Commission special permanent of the old city in Montevideo during 15 years.
Also was member of the Council honorary of the works of preservation and reconstruction of Colonia del Sacramento, which was later declared heritage of the humanity by Unesco.
This biographical article about a Uruguayan historian is a stub.