Conus bruuni is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.
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 33 mm and 61 mm.
This marine species occurs off New Zealand (Kermadec Islands) and off New Caledonia.
