Marta Lamas Encabo (born 1947) is a Mexican anthropologist and political science professor at the National Autonomous University of Mexico (UNAM), and lecturer at the Instituto Tecnológico Autónomo de México (ITAM). She is one of Mexico's leading feminists and has written many books aimed at reducing discrimination by opening public discourse on feminism, gender, prostitution and abortion. Since 1990, Lamas has edited one of Latin America's most important feminist journals, Debate Feminista (Feminist Debate). In 2005, she was nominated for a Nobel Peace Prize.