Liolaemus gravenhorstii, commonly known as Gravenhorst's tree iguana, is a species of lizard in the family Liolaemidae.

The species is endemic to South America.

[1] The specific name, gravenhorstii, is in honor of German herpetologist Johann Ludwig Christian Gravenhorst.

[3] As of 2023, L. gravenhorstii is found in central Chile and differs from the two populations reported by Cei and Videla (2001) for Argentina,[4][5] which may belong to another species.

[1] In Chile, L. gravenhorstii has confirmed distribution records for the Región Metropolitana and potential records for the O’Higgins and Valparaíso regions.