Pampa Hermosa National Sanctuary, National sanctuary in Junín, Peru

Pampa Hermosa National Sanctuary is a protected area in the mountains between the provinces of Tarma and Chanchamayo in central Peru. The land features mountain forests at different elevations and holds a variety of plant and animal life.

The area was first designated a Zona Reservada in 2005. On 26 March 2009 it was reclassified as a Santuario Nacional by Decreto Supremo N.º 005-2009-MINAM, covering 11,543.74 ha. It forms part of the Bosques de Neblina-Selva Central biosphere reserve together with the Pui Pui protection forest.

The sanctuary's name, Pampa Hermosa, is shared with the hamlets of Ninabamba and Nueva Italia that sit around its edges, the only settlements nearby. Access from the San Ramón side follows a 23 km dirt track, while the Huasahuasi approach is a five-day walk past lakes and mountain scenery.

Visitors should expect changing weather conditions and steep paths that traverse different elevation zones. Good footwear and weatherproof clothing are necessary to explore the trails safely.

The sanctuary protects the only high-altitude cedar forest in Peru, with almost all its montane forest unaltered. This lets species scarce elsewhere survive here, such as the black walnut (Juglans neotropica), ulcumano (Retrophyllum rospigliosii) and quina or cascarilla (Ladenbergia sp.). Its orchids remain largely unstudied.