Harpesaurus brooksi is a species of lizard in the family Agamidae.

The species is endemic to Sumatra.

[1] The specific name, brooksi, is in honor of British metallurgical chemist Cecil Joslin Brooks, who collected natural history specimens in Borneo and Sumatra.

[2] H. brooksi has a single cylindrical "horn" on its nose.

This lizard from family Agamidae article is a stub.