Samoana attenuata is a species of air-breathing tropical land snail, a terrestrial pulmonate gastropod mollusc in the family Partulidae.

This species is endemic to French Polynesia.

[1] The slender snail was widespread in Society Islands.

But in the late 1980s, carnivorous Euglandina rosea was introduced into Society Islands and this led to Samoana attenuata snails disappearing quickly.

Presently, the species is living on Raiatea, Tahiti, and Moorea.