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

(Original description) The elongate shell is white or yellowish.

The spire whorls bear three spiral keels, about equally spaced.

They are crossed by numerous axials of about equal size and distance, forming square meshes, which latter are finely spirally lirate.

[2] This marine species is endemic to Australia and occurs off New South Wales, Queensland, South Australia, Tasmania and Victoria.