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.

The following species are recognized as being valid:[1][2] 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.

This article about a Diplodactylidae is a stub.