Sagnes de la Godivelle National Nature Reserve, National nature reserve in La Godivelle, France.

The Sagnes de la Godivelle National Nature Reserve (RNN23) is a 143.95-hectare protected area of peat bogs and wetlands in the Cézallier massif, Puy-de-Dôme, at 1,165–1,205 m altitude. It includes the Lac-d'en-Bas, a glacial lake formed 10,000 years ago, and the Coualle Basse bog, connected by the La Godivelle stream. The landscape shows rolling grassy hills with patches of shrubs, two dark water bodies, and a small cluster of buildings.

The area gained protected status in 1975 and was expanded later to include more wetland and lake systems under formal conservation management. Today it operates under regional environmental protection authority in the Auvergne area.

The name comes from "sagne", an Auvergne term for a marsh or peat bog, also found in nearby place names such as Malsagne and Chassagne. Since 2007 a discovery trail along the Lac-d'en-Bas has been open free of charge, and summer events introduce visitors to the bog.

Access to the site is by hiking trails and viewing areas where visitors can watch birds and observe nature directly. The warmer months offer better visiting conditions when paths are more passable and the landscape is actively growing.

The site hosts specialized bog plants and moorland vegetation that thrive in high-altitude harsh conditions, creating unusual habitats for alpine bird species that are found few other places. These cold and wet upland ecosystems in this location support life forms that are rare or absent in lower European regions.