Mylossoma aureum is a species of serrasalmid native to the Amazon and Orinoco Basins in South America.

This species grows to a total length of 20 cm (7.9 in).

[1] This species is of some importance to local commercial fisheries, but less so than the closely related M. albiscopum of the same region.

[2] It is a fast breeder and rapidly reaches adulthood.

It is omnivorous, but mostly feed on plant material.