Nambung National Park is home to a variety of wildlife with 176 observed animal species, including 128 birds, 8 mammals, 15 reptiles, several fish and arthropods and one amphibian. Among the mammal species are the western grey kangaroo, red kangaroo, dingo, honey possum and red fox. Some common bird species include silver gull, black-faced woodswallow, white-backed swallow, red-capped plover and raven. Reptile species include Buchanan's snake-eyed skink, yellow-faced whip snake, bobtail (a species of blue-tongued skink) and sand goanna. The only observed amphibian species is the sign-bearing froglet.