The culpeo (Pseudalopex culpaeus), sometimes known as the Patagonian fox, is a South American species of wild dog. It is the second largest native canid on the continent after the maned wolf. In its appearance it bears many similarities to the widely recognized red fox. It has grey and reddish fur. It has a white chin, reddish legs, and a stripe on its back that may be barely visible.

Its distribution extends from Ecuador and Peru to the southern regions of Patagonia and Tierra del Fuego. It is most common on the western slopes of the Andes, where it inhabits open country and deciduous forests. Populations of culpeos are also found in some of the westernmost of the Falkland Islands.

The culpeo’s diet consists largely of rodents, rabbits, birds and lizards. It sometimes eats plant material and carrion. Allegedly the culpeo attacks sheep and therefore it is often hunted or poisoned. In some regions it has become rare, but overall the species is not threatened with extinction.