Leiostyla gibba

{{Short description|Extinct species of gastropod}}

{{Speciesbox

| status = PE

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Seddon, M.B. |date=2011 |title=Leiostyla gibba |volume=2011 |page=e.T11458A3279526 |doi=10.2305/IUCN.UK.2011-1.RLTS.T11458A3279526.en |access-date=14 November 2021}}

| taxon = Leiostyla gibba

| authority = (R. T. Lowe, 1852)

}}

Leiostyla gibba is a species of small, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Lauriidae. This species is mentioned in Annexes II and IV of the Habitats Directive. It is one of several species sometimes referred as Madeiran land snail.

Leiostyla gibba is listed as Critically Endangered in the 2011 IUCN Red List, but now may possibly be extinct.