Amalda montrouzieri is a species of sea snail, a marine gastropod mollusc in the family Ancillariidae, the olives.
Almada montrouzieri is typically distributed 10m (30feet) to 70m (230feet) below sea level in the areas around Southern New Caledonia, with sightings as deep as 280m (920feet) attested. It has also been anecdotally attested in or around the Loyalty Islands, Fiji, the Ryukyu Islands, and the Philippines.