| Engenho Gargaú Private Natural Heritage Reserve | |
| Alt Name: | Reserva Particular do Patrimônio Natural Engenho Gargaú |
| Map: | Brazil |
| Relief: | yes |
| Nearest City: | Santa Rita, Paraíba |
| Coordinates: | -7.021°N -34.956°W |
| Designation: | Private natural heritage reserve |
The Engenho Gargaú Private Natural Heritage Reserve (Portuguese: Reserva Particular do Patrimônio Natural Engenho Gargaú) is a private natural heritage reserve in the state of Paraíba, Brazil.
The reserve covers an area of in the municipality of Santa Rita, Paraíba.It was created by decree on 15 June 1994.Before it was created the reserve had been exploited for timber and agricultural crops.
It was thought that the blond capuchin monkey (Cebus flavius) was extinct, but it has been rediscovered in two Atlantic Forest fragments in Paraíba, the Camaratuba Experimental Station and the Gargaú reserve.The animals are listed as Critically Endangered on the IUCN Red List.Sample animals were captured and examined in the Gargaú reserve. They seemed healthy and sufficiently genetically diverse to form a viable population.The reserve is also home to the red-handed howler (Alouatta belzebul) and common marmoset (Callithrix jacchus).