The non-marine molluscs of the Gambier Islands are a part of the molluscan fauna of French Polynesia.
There is a high degree of endemism of these species.
The gastropod fauna has been affected by severe alterations to the natural environment of the Gambier Islands.
[1] 43 of the 46 species of snails that once made the Gambier Islands their homes are now extinct.
[2]