The Fridtjof Nansen Institute (FNI) is an independent foundation dedicated to researching international environmental, energy, and resource management politics and law. With a staff of around 50, including researchers and students, FNI's main focus areas include global environmental governance and law, climate change, the law of the sea and marine affairs, biodiversity and genetic resources, polar and Russian politics, European energy and the environment, and Chinese energy and the environment. By understanding the underlying forces in international environmental and resource politics, FNI aims to contribute to political solutions in these areas.

FNI collaborates extensively with other research institutions and researchers at home and abroad to make their expertise accessible and relevant to users and the public. FNI's research is published in international scholarly journals and books, and the institute also has its own report series. FNI is the research arm of The Fridtjof Nansen Foundation and is funded by various organizations, including the Research Council of Norway and the European Commission.

Their annual turnover is around 40 million NOK