Aldabrachelys is genus of giant tortoises, including the Aldabra giant tortoise native to the Seychelles, as well as two recently extinct species, Aldabrachelys abrupta and Aldabrachelys grandidieri known from Madagascar. The genus name derives from Aldabra, a coral atoll in the Seychelles, plus Greek, chelys (χέλυς), for "tortoise" or "lyre", since Hermes made the first lyre from a hollowed out tortoise shell.