Carychium pessimum

{{Short description|Species of gastropod}}

{{Speciesbox

| image = Carychium pessimum.png

| image_caption = A live Carychium pessimum

| genus = Carychium

| species = pessimum

| authority = Pilsbry, 1902

| synonyms =

}}

Carychium pessimum is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Ellobiidae.