Endodontidae is a taxonomic family of very small air-breathing land snails and slugs, terrestrial pulmonate gastropod molluscs in the superfamily Punctoidea.

This family, which includes both snails and slugs, appears to have once been much more diverse, but has declined, and is now endangered due to human activity.

In this family, the number of haploid chromosomes lies between 26 and 35 (according to the values in this table).

The family is critically endangered and on the verge of extinction, mainly because of habitat loss due to human development.

On American Samoa, some species are in decline due to predation by introduced fire ants.