Margaret Chant-Papandreou (Greek: Μαργαρίτα Τσαντ-Παπανδρέου; born September 30, 1923) is a Greek-American activist, writer, and columnist who served as the wife of Prime Minister of Greece Andreas Papandreou.

Chant-Papandreou is an important participant in the struggle for women's rights, as she played a leading role in the creation, elaboration and promotion of laws that greatly improved the legal and social position of Greek women, such as the abolition of the dowry institution (1982),[1] the legalization of abortion (1986),[2] the establishment of civil marriage (1982),[2] the legalization of divorce by mutual consent, the possibility of women retaining their surnames after their marriage and obtaining equal rights with the husband in the custody of their children.

She first studied journalism and then did her Masters in Public health at the University of Minnesota, where she met her future husband Andreas Papandreou in 1948.

They initially lived in Minnesota and later in California, where Andreas Papandreou was Chair of the Department of Economics at Berkeley University.

[9][10][11][12][13] In December 2012, the newspapers To Vima and Proto Thema claimed in their publications that Margarita Papandreou owned one of the accounts on the Lagarde list.