The golden-bellied capuchin (Cebus xanthosternos), also known as the yellow-breasted or buffy-headed capuchin, is one of several species of New World monkeys.
There are differences between individuals as well as between the sexes and across age groups. It is described as having a distinctive yellow to golden red chest, belly and upper arms. Its face is a light brown and its cap. They do not have very evident tufts. They are oriented towards the rear of the skull and are hardly noticeable. There is a band of short hair around the upper part of the face with speckled coloring contrasts, with the darker surrounding areas. The limbs and tail are also darkly colored.
Populations are restricted to the Atlantic forest of southern Bahia, Brazil. This is due possibly to high degrees of interference from man. Only 300 individuals survive.