Australohyaena is an extinct genus of carnivorous mammal, belonging to the order Sparassodonta.

Its skull had a short snout, strong and large canines, a particularly deep mandible, and molars with reduced talonids and protocones.

[1] This genus was until recently only known from isolated teeth, described in 1894 by Florentino Ameghino as Borhyaena antiqua.

Australohyaena is a member of the order Sparassodonta, a group of South American mammals similar to marsupials, whose appearance vaguely resembled placental carnivores from the rest of the world.

Some characteristics of Australohyaena, such as its short muzzle, its large canines, its deep mandibles and its reduced protocone and talonid, indicates that it was an hypercarnivore ; the pronounced temporal fossa and the well developed cranial vault indicates that it was able to break bones thanks to its strong teeth, perhaps in a similar behaviour than modern hyaenas.