The Bornean yellow muntjac (Muntiacus atherodes) is a muntjac species endemic to the moist forests of Borneo.
It lives alongside the common muntjac. It is similar to its much more common cousin and was only recognised as a separate species in 1982.
Apart from the color difference, its antlers, which are just 7 cm (2.8 in) in length, are smaller than those of the common muntjac. It has not been extensively studied and has been described as a relict species.
This muntjac species is a potential prey of the Bornean tiger.