Rionansa
Municipality
Coat of arms
Location of Rionansa
Rionansa Location in Spain
Coordinates: 43°15′17″N 4°24′09″W / 43.25472°N 4.40250°W / 43.25472; -4.40250
Country	Spain
Autonomous community	Cantabria
Province	Cantabria
Comarca	Saja-Nansa
Judicial district	San Vicente de la Barquera
Capital	Puentenansa
Government
• Alcalde	José Carlos Lavín Cuesta
Area
• Total	118.02 km2 (45.57 sq mi)
Elevation	200 m (700 ft)
Population  (2018)[1]
• Total	1,038
• Density	8.8/km2 (23/sq mi)
Time zone	UTC+1 (CET)
• Summer (DST)	UTC+2 (CEST)

Rionansa is a municipality located in the autonomous community of Cantabria, Spain.^[2]

This municipality is located in the Nansa River Valley, from which it takes its name, in western Cantabria. The territory is close to one hundred and twenty square miles, all of them belonging to the National Game Reserve Saja.

• Arenas
• Las Bárcenas
• Cabrojo
• Celis
• Celucos
• Cosío
• La Cotera
• La Herrería
• Obeso
• Pedreo
• Los Picayos
• Puentenansa (Capital)
• Riclones
• Rioseco
• Rozadío
• San Sebastián de Garabandal