Conus mappa 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 body whorl is smooth and has a very variable color pattern of milkish white to pinkish white with two spiral bands of greenish yellow to darker brown.

The spiral whorls show very fine longitudinal grooves.