Pachyonomastus is a monotypic genus of East African jumping spiders containing the single species, Pachyonomastus kittenbergeri. It was first described by Lodovico di Caporiacco in 1947,[1] and is only found in Africa.[2] The name is a combination of the Ancient Greek Greek, Ancient (to 1453);: παχύς ("pachys"), meaning "thick", and the related genus Onomastus. The species is named in honor of Kálmán Kittenberger, who collected the species.