Glyptophysa novahollandica is a freshwater species of gastropod mollusk in the family Planorbidae.
The length of an adult shell may exceed 30 mm. The shells of adult G. novahollandica are very variable, often have relatively smooth shells. Some specimens or populations may also have periostracal hairs and spirals present.
This species occurs in all states and territories of Australia, including Tasmania. Specimens from Papua New Guinea and East Timor may also prove to be this species.