Harpesaurus is a genus of lizards in the family Agamidae. The genus is endemic to Indonesia.
Each of the 6 species are known from at most only a few specimens.
Species of the genus Harpesaurus are found on the Greater Sunda Islands.
The natural habitat of lizards of the genus Harpesaurus is forests.
Six species are recognized as being valid.
The species formerly known as H. thescelorhinos is a synonym of H. borneensis.
The Sumatran species H. modiglianii was previously known only from the type specimen, collected in 1891, but was found again in 2018.
Nota bene: A binomial authority in parentheses indicates that the species was originally described in a genus other than Harpesaurus.