The Serpent Island gecko (Nactus serpensinsula) is a species of lizard in the family Gekkonidae.

The species is endemic to Serpent Island in Mauritius (an island country in the Indian Ocean).

[1] The Serpent Island gecko is a monotypic species.

The Durrell's night gecko, endemic to the Round Island of Mauritius, was previously treated as a subspecies of Serpent Island gecko.

This article about a gecko is a stub.