The sand goanna (Varanus gouldii) is a species of large Australian monitor lizard, also known as Gould’s monitor, sand monitor, or racehorse goanna.
A species of Varanus, lizards known as monitors and goannas, that is found in a variety of habitat. Due to the taxonomic uncertainty during the twentieth century the species form and behaviour has included taxa later recognised as distinct species, this includes V. rosenbergi, formerly treated as a subspecies and later elevated, and V. panoptes, described as a new species in 1980 and resolved as a legitimate publication in 2000.