Elimia troostiana

{{Short description|Species of gastropod}}

{{Use dmy dates|date=July 2021}}

{{Speciesbox

| name = Mossy Elimia

| status = PE

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Cordeiro, J. |author2=Perez, K. |year=2011 |title=Elimia troostiana |page=e.T7617A12835289 |doi=10.2305/IUCN.UK.2011-2.RLTS.T7617A12835289.en |access-date=17 November 2021}}

| status2 = G1

| status2_system = TNC

| status2_ref = {{cite web |title=Elimia troostiana |url=https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.116316/Elimia_troostiana |website=NatureServe Explorer An online encyclopedia of life|version=7.1 |publisher=NatureServe |access-date=29 October 2023}}

| taxon = Elimia troostiana

| authority = (I. Lea, 1838)

| synonyms = Melania troostiana {{small|I. Lea, 1838}}

}}

Elimia troostiana, the Mossy Elimia, is a species of freshwater snail with an operculum, aquatic gastropod mollusc in the family Pleuroceridae. This species is endemic to the Mossy Creek district of Jefferson County, Tennessee in the United States, for which it is named.