Garthia is a genus of lizards, commonly known as marked geckos, in the family Phyllodactylidae.

The genus is endemic to Chile.

[2] The generic name, Garthia, is in honor of British herpetologist Garth Underwood.

[2] Nota bene: A binomial authority in parentheses indicates that the species was originally described in a genus other than Garthia.

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