Mariana Gomes is a Portuguese legal professional working in environmental and climate law. Selected by the U.S. Department of State for the Study of the U.S. Institutes program on Environmental Issues, she holds a law degree from the University of Lisbon School of Law.

She is the founder and Chief Executive Officer of Último Recurso, a strategic climate litigation organisation based in Portugal. Through Último Recurso, she has advanced Portugal's first strategic climate case, raising novel questions of constitutional law and EU environmental obligations.

She has served as a member of the advisory Reflection Group convened by the President of the Portuguese Republic, contributed to the United Nations Secretary-General's consultative process on Critical Energy Transition Minerals, and serves as a European Climate Pact Ambassador for the European Commission. She has been a delegate to over ten international summits, including COPs and the UN Summit of the Future.

She speaks regularly on environmental and climate law at institutions including the Council of Europe, the European Commission, Columbia University, and the BMW Foundation. Her commentary has appeared in Reuters, UN News, Forbes, and The Ecologist.

She was named to Forbes 30 Under 30 and recognised in the Forbes Green ESG Awards 2025 in the Next Generation category.