Lunella cinerea, common name the smooth moon turban, is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails.

The solid, umbilicate shell has a depressed-globose shape with a strong spiral sculpture.

The suture is slightly undulating.

The five whorls are spirally lirate, and with lirulae in the interstices.

[2] This species occurs in the tropical Indo-West Pacific, off the Andaman Islands and Nicobar Islands, the Philippines, in the Red Sea, and off Australia (Northern Territory, Queensland, Western Australia).