Lucasium is a genus of lizards, sometimes called ground geckos, in the family Diplodactylidae. The genus is endemic to Australia, and it includes 14 species.
Nota bene: A binomial authority in parentheses indicates that the species was originally described in a genus other than Lucasium.
Both the beaded gecko and the box-patterned gecko can be kept as pets although a permit is required to keep them.