María "Marilita" del Carmen Squeff (born October 26, 1955) is an Argentine diplomat.

[1] Squeff held positions in the commercial section of the Argentine mission to the European Union in Brussels, between 1995 and 2000, and several positions in the mission to the Food and Agriculture Organization of the United Nations (FAO) in Rome, between 2005 and 2011, being deputy permanent representative of Argentina, chair of the Committee on World Food Security and member of the FAO Program Committee.

[1] In June 2013, she led a mission to Ivory Coast, Cameroon and Senegal accompanied by officials and technicians from the then Ministry of Agriculture, Livestock and Fisheries, to encourage South-South technical cooperation.

[4] In February 2014, Squeff was appointed ambassador to France by President Cristina Fernández de Kirchner.

[10] Squeff was appointed Permanent Representative of Argentina to the United Nations by Alberto Fernández in August 2020.