Monica P. Medina (born 1962) is an American attorney and former military officer serving as the Assistant Secretary of State for Oceans and International Environmental and Scientific Affairs at the Department of State. Medina previously served as Principal Deputy Undersecretary of Commerce for Oceans and Atmosphere, deputy associate attorney general, and general counsel of National Oceanic and Atmospheric Administration. She was also the U.S. Commissioner to the International Whaling Commission.