Conus tiaratus, common name the tiara cone, is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their relatives.
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 the shell varies between 15mm and 39mm. The shell itself is conical, resembling a conch shell. It is either white with orange spots or orange with white spots, with a white interior.
According to the IUCN analysis conducted in 2011, it is classified as "least concern."
This species occurs in the Pacific Ocean from Southern Mexico to Peru; off the Galapagos Islands.