Meelup Regional Park represents the largest coastal reserve located within the City of Busselton providing valuable habitat for native fauna. Fauna habitats include waterways and dams, rocky and sandy beaches, heath, woodland and forest. The park is of great importance to fauna of conservation significance including the Southern brown bandicoot (Quenda), Carnaby’s black cockatoo, Baudin’s black cockatoo, the Red-tailed black cockatoo, the Rainbow bee-eater, the Caspian tern, the Western pipistrelle bat and the Western ringtail possum.
A fauna survey in 2014 by NGH Environmental (6.35MB) found a total of 102 fauna species (excluding fish and invertebrates).