Maria del Carmen Domínguez Álvarez, also Karmenka, (born 1969) is a Spanish glaciologist, polar explorer and mathematician. She is a co-founder of the Glackma Project which since 2001 has networked the measurement of glacier discharge in the polar regions. She has undertaken over 60 polar expeditions in Antarctica, Patagonia, Iceland, Svalbard and Siberia. Her work is considered to have contributed significantly to the understanding of global warming.