The Pacific Institute for Studies in Development, Environment, and Security is an American non-profit research institute created in 1987 to provide independent research and policy analysis on issues of development, environment, and security, with a particular focus on global and regional freshwater issues. It is located in Oakland, California. The institute's primary focus is on water conservation and demand management. The mission of the institute is to "[create] and [advance] solutions to the world’s most pressing water challenges".