Alvania mamillata is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.

It is covered by rounded granules in longitudinal and spiral series.

It has a white or light fulvous to chestnut color, unicolored or bifasciate.

The lip is thick, labiate and sulcate within, white-varicose externally.

[2] This species occurs in the Mediterranean Sea (Malta, Greece, Turkey)