Conus hennequini 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 maximum recorded shell length is 23 mm.
This marine species occurs in the Caribbean Sea off Honduras and Martinique; in the Mid-Atlantic Ridge.
Minimum recorded depth is 2 m. Maximum recorded depth is 2 m.
