The Nolin Lake State Park is a state park and recreation area in Mammoth Cave, Kentucky. It is located on the northern edge of the Mammoth Cave National Park.

Established in 2001, the Nolin Lake State Park is a well known recreation destination, famous for its outdoor activities. Providing access to the Nolin Lake, boaters and fishermen are commonly found at the site enjoying the waters. Campers also frequent the park, with its 32 developed campsites with water and electricity and 20 primitive campsites. Aside from these, folks can also enjoy birding, hiking, and picnicking at the site.

The only down side to the Nolin Lake State Park is that it usually gets closed down because of flooding. Announcements are available, though, in such cases.