Chelodina steindachneri, commonly known as the dinner-plate turtle or Steindachner's turtle, is a species of turtle in the family Chelidae. The species is the least known of the Australian turtles and also one of the smallest members of the long-necked turtles of the genus Chelodina. It is a member of the subgenus Chelodina making it closely related to the Chelodina longicollis group of species.