The Leibniz Institute for Baltic Sea Research Warnemünde is a German research institute dedicated to the interdisciplinary study of the Baltic Sea and its coastal environments. As part of the Leibniz Association, the institute conducts research in areas such as marine physics, marine chemistry, biological oceanography, and marine geology, aiming to improve understanding of marine ecosystems and support the sustainable management of coastal and marine resources. It is located in Warnemünde.