Caryocar (souari trees) is a genus of flowering plants, in the South American family Caryocaraceae described as a genus by Linnaeus in 1771.

[3][4] It is native primarily to South America with a few species extending into Central America and the West Indies.

[2] Caryocar consists of trees that yield a strong timber.

Some of the species within the genus Caryocar have edible fruits, called souari-nuts or sawarri-nuts.

Furthermore, some species are used by indigenous peoples to produce poisons for hunting.