Ligia María del Valle Vega is a Guatemalan lawyer and a policy practitioner affiliated with the Kellogg Institute's Notre Dame Violence and Transitional Justice Lab (V-TJLab).

She obtained her law degree cum laude from the Rafael Landivar University in 2011, where she received the Loyola Award (the highest honor that the University gives to a student) and the Mention of Excellence Landivariana (recognition of academic excellence and outstanding student in the law school). She became involved in human rights in 2010, when she joined a team that represented victims before the Inter-American Court of Human Rights. She also worked as an environmental law consultant in the USAID Justice and Security Program in Guatemala. From 2015 to 2018, she was a Legal Officer at the International Commission Against Impunity in Guatemala (CICIG). On August 2018 she enrolled on the LLM International Human Rights Program at the University of Notre Dame, were in 2019 she obtained her Master degree magna cum Laude. From June 2019 to January 2020 she worked as a Project Officer in Justice Education Society - JES-, an organization that works with justice institutions in Guatemala, El Salvador and Honduras.