Conus cinereus, common name the sunburnt 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.

The species Conus cinereus Schröter, 1803 is a nomen dubium.

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