Elachista crenatella

{{Short description|Species of moth}}

{{Speciesbox

| image = Elachista crenatella.JPG

| image_caption =

| genus = Elachista

| species = crenatella

| authority = Kaila, 2011

| synonyms =

}}

Elachista crenatella is a moth of the family Elachistidae. It is found in the Australian state of South Australia near Adelaide and on Kangaroo Island.{{Cite book|last=Kaila|first=Lauri|author-link= Lauri Kaila|url=https://books.google.com/books?id=flsAVRnbaA4C&pg=PA104 |title=Elachistine Moths of Australia: (Lepidoptera: Gelechioidea: Elachistidae)|date=2011|publisher=Csiro Publishing|isbn=978-0-643-10305-4|page=104 | place= Canberra}}

The wingspan is about 11 mm for males.