The light tan colouring of the pampas deer allows it to perfectly blend into the surroundings. They have patches of white around the eyes, lips and along the throat area. They also feature a tail that is short and bushy. The fact that they also have a white patch under the tail is why they are often confused with the white-tailed deer species.

The males weigh about 90 pounds and the females about 10 pounds lighter than that. The antlers for the males are small and very light in weight. They tend to develop a three prong design to them. The females develop tiny stubs but not antlers.