Callitris oblonga, also called South Esk Pine, Pigmy cypress pine, River pine, or Tasmanian cypress pine, is a species of conifer in the Cupressaceae family. It is endemic to Australia, and is threatened by habitat loss. The last remaining significant stand of subspecies oblonga is protected in the South Esk Pine Reserve. Subspecies parva occurs in northern NSW on the eastern edge of the Northern Tablelands in Werrikimbe National Park.