The desert rainbow-skink (Carlia triacantha) is an Australian skink in the genus Carlia, commonly known as four-fingered skinks, from the subfamily Lygosominae.

[4][5] It was originally classified as Leiolopisma triacantha,[3] and is sometimes known as the three-spined rainbow-skink.

[4] The desert rainbow-skink is on average 5.3 centimetres (2.1 in) long, excluding the tail.

Desert rainbow-skinks shelter in woodland leaf litter, feeding mainly on invertebrates.

[5] During breeding season males of the species display blue-green colouring on the head and red flanks.