Palaina lucia, also known as Lucy's staircase snail, is a species of staircase snail that is endemic to Australia's Lord Howe Island in the Tasman Sea.

It is reddfish-brown in colour, with a white peripheral band on the final whorl, white radial streak above the aperture, and deeply impressed sutures.

It has strong, widely spaced, axal ribs.

The circular aperture has a strongly reflected lip and an operculum is present.

[2] The snail is found on the upper slopes and summits of the southern mountains.