Austrocochlea rudis, common name the rough periwinkle or the roughened austrocochlea, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

[2][3] The imperforate shell has an orbiculate-conical shape.

The blunt spire shows transversal black lines and oblique longitudinal striae.

The smooth lip is black and within with a golden yellow margin.

[4] This marine species is endemic to Australia and occurs off South Australia and Western Australia