Marta Larraechea Bolívar (born August 30, 1944 in Constitución, Talca Province) is a social orientator, politician and wife of Chilean President Eduardo Frei Ruiz-Tagle. She was a council member of the Santiago municipality (2000–2004) and First Lady of Chile (1994–2000). She is of Basque descent. She is the daughter of Vasco de Larraechea Herrera and Victoria Bolívar Le Fort.