Stomacosmethis balingensis is a species of land snail with a gill and an operculum, a terrestrial gastropod mollusc in the family Alycaeidae.
The distribution of S. balingensis is limited to the limestone karst at Bukit Baling, Kedah, Peninsular Malaysia.
Stomacosmethis balingensis is threatened by habitat destruction due to ongoing quarrying activities.