Conus tacomae 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 the shell varies between 15 mm and 30 mm.
This marine species is only known to occur at the coast of Senegal, off the island of Gorée, approx 2 km offshore from Dakar. It has been found on rocky coastlines at depths of 0–7 m, and also in sandy pockets at 35–40 m.