The Ninnescah River is a river in the central Great Plains of North America. Its entire 56.4-mile (90.8 km) length lies within the U.S. state of Kansas. It is a tributary of the Arkansas River.
The Ninnescah River originates in the Wellington Lowlands of south-central Kansas. It is formed in southwestern Sedgwick County by the confluence of the North Fork Ninnescah River and the South Fork Ninnescah River. From there, it flows southeast into the Arkansas River Lowlands. It empties into the Arkansas River roughly 3 miles (4.8 km) north of Oxford, Kansas in eastern Sumner County.
- “Ninnescah River”. Geographic Names Information System. United States Geological Survey. Retrieved 2015-10-19.
- “Water-Data Report 2013 – 07145500 Ninnescah River Near Peck, KS” (PDF). U.S. Geological Survey. Retrieved 2015-10-19.
- U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed March 29, 2011
- “2003-2004 Official Transportation Map” (PDF). Kansas Department of Transportation. Retrieved 2015-10-19.
- Kansas: a cyclopedia of state history, embracing events, institutions, industries, counties, cities, towns, prominent persons. Standard Pub. Co. Chicago : 1912. Volume II. Page 370.