The Adirondack Watershed Institute (AWI) is a component of Paul Smith's College (PSC). The program started in 1989 as a local-scale water quality monitoring program called the Adirondack Aquatic Institute (AAI) and expanded in 1999 to include invasive species management. PSC started the Watershed Stewardship Program (WSP) in 2000 as a separate initiative that focused on local-scale invasive species prevention activities. These two programs expanded over the years as separate efforts, in 2002 the college recognized the synergy of linking these programs and thus merged them to begin the AWI. The AWI has since grown into a regional-scale water quality monitoring and invasive species management program.

The mission of the Adirondack Watershed Institute is to protect clean water, conserve habitat and support the health and well-being of people in the Adirondacks through scientific inquiry, stewardship and real world experiences for students.