Achatinella stewartii is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Achatinellidae.

This species is endemic to Hawaii.

Achatinella stewartii (Green, 1827) is the type species of the subgenus Achatinellastrum.

Media related to Achatinella stewartii at Wikimedia Commons

This Achatinellidae-related article is a stub.