The Australian Darter or Australasian Darter (Anhinga novaehollandiae) is a species of bird in the darter family, Anhingidae . It is found in Australia, Indonesia, New Zealand, and Papua New Guinea.

It is closely related to American (Anhinga anhinga), African (Anhinga rufa), and Oriental (Anhinga melanogster) Darters.

Typical habitat is freshwater or brackish wetlands more than 0.5m deep with fallen trees or logs and vegetated banks; less commonly, Darters are found in sheltered saltwater or estuarine environments.

Male Australian Darter preening after a swim.

Male Australian Darter drying its wings after a swim.

Female in flight

Australian Darter in Gatton, Queensland, Australia.