The Néouvielle massif is a group of mountains in the Pyrenees in France notable for its lakes and its microclimate.

Much of the massif lies within the 23.13 square kilometres (8.93 sq mi) Néouvielle National Nature Reserve; this nature reserve was created in 1936 and is the third oldest in France.

[1] The name Néouvielle ('old snow') derives from nèu vielha in the Occitan language – nèu meaning 'snow' and vielha meaning 'old' – and is thought to refer to the many glaciers that used to belong to the region.

This group is centred on Pic de Néouvielle and is composed of heavily glaciated granite peaks.

Approximately 370 species of animal are found in the reserve, including capercaillie, grey partridge, golden eagle, griffon vulture, isard, midwife toad, ptarmigan and Seoanei's viper.