Pupilla obliquicosta

{{Short description|Extinct species of gastropod}}

{{Speciesbox

| name = Pupilla obliquicosta

| image =

| status = EX | status_system = IUCN2.3

| status_ref = {{cite iucn |author=Mollusc Specialist Group |date=1996 |title=Pupilla obliquicosta |volume=1996 |page=e.T18912A8687380 |doi=10.2305/IUCN.UK.1996.RLTS.T18912A8687380.en |access-date=16 November 2021}}

| genus = Pupilla

| species = obliquicosta

| authority = Smith, 1892

| synonyms =

}}

†Pupilla obliquicosta is an extinct species of minute, air-breathing land snail, a terrestrial pulmonate gastropod mollusk or micromollusk in the family Pupillidae. This species was endemic to Saint Helena but is now extinct due to human activities.