Marta Sahagún (Spanish pronunciation: ['ma?ta sa(a)'?un]; born Marta María Sahagún Jiménez on April 10, 1953) served as the First Lady of Mexico from July 2, 2001, when she married President Vicente Fox Quezada, until he left office on November 30, 2006.
Her tenure was marked by her outspoken views and active role in her husband's administration, in contrast to previous First Ladies of Mexico, as well as several controversies regarding her nonprofit Vamos México foundation and her family's business dealings.