Marta Harnecker (1937 – 14 June 2019) was a Chilean journalist, author, psychologist, sociologist, and Marxist intellectual.

Following the 1973 Chilean coup d'etat against Allende, she was forced into exile and lived in Cuba until the death of her first husband, Manuel Piñeiro.

[2][3] While living in Cuba, Harnecker founded the research institute Memoria Popular Latinoamerica (MEPLA) and continued to write.

It has since sold nearly one million copies in Spanish and Portuguese, and is considered one of the best-selling non-fiction books ever published in Latin America".

[5] On 15 August 2014, Harnecker accepted the 2013 Liberator's Prize for Critical Thought for her book A World To Build, which was published in English in January 2015.