Conus gauguini, common name Gauguin's cone, is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.
Like all species within the genus Conus, these snails are predatory and venomous. They are capable of "stinging" humans, therefore live ones should be handled carefully or not at all.
The size of an adult shell varies between 56 mm and 93 mm.
This species occurs in the Pacific Ocean along the Marquesas and Tahiti.