The Nolin River is a 104-mile-long (167 km) tributary of the Green River in central Kentucky in the United States. Via the Green and Ohio rivers, it is a part of the watershed of the Mississippi River. The United States Board on Geographic Names settled on "Nolin River" as the stream's name in 1933.
The Nolin River is formed in western LaRue County by the confluence of its short North and South Forks, both of which flow for their entire lengths in Larue County; the North Fork flows past Hodgenville. The Nolin then flows generally southwestwardly through or along the boundaries of Hardin, Grayson, Hart and Edmonson counties. It joins the Green River in the western part of Mammoth Cave National Park, about 2 miles (3 km) northeast of Brownsville.
- U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed June 13, 2011
- Columbia Gazetteer of North America entry
- U.S. Geological Survey Geographic Names Information System: Nolin River
- U.S. Geological Survey Geographic Names Information System: North Fork Nolin River
- U.S. Geological Survey Geographic Names Information System: South Fork Nolin River
- DeLorme (2005). Kentucky Atlas & Gazetteer. Yarmouth, Maine: DeLorme. ISBN 0-89933-340-0