G. darwinii may refer to: Gephyroberyx darwinii, the Darwin's slimehead, a slimehead fish species in the genus Gephyroberyx Gossypium darwinii, a cotton plant species found only on the Galapagos Islands Gymnodactylus darwinii, Gray, 1845, a gecko species in the genus Gymnodactylus
See also G. darwini (disambiguation) Darwinii (disambiguation)