The Río Viejo San Camilo National Park[1] (Spanish: Parque nacional Río Viejo-San Camilo),[2] or Rio Viejo-San Camilo National Park, Is a protected area with the status of national park[3] in the South American country of Venezuela.

[4] Specifically its territory is part of the state of Apure near the border with Colombia.

It has an estimated area of 80,000 hectares, which constitute national park since 1 July 1993.

Its vegetation is constituted basically by savannahs that include trees like the samán, the ceiba, the apamate and the palm macanilla.

Due to the existence of numerous rivers there is a varied fauna that includes from turtles, to herons and parrots.