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

The pupiform shell of adult snails is 1.5 mm in height, with a diameter of 0.9 mm, with deeply impressed sutures.

It is white in colour, with golden apical whorls.

It has moderately spaced axal ribs.

[2] The snail is common and widespread across the island.