The Elachistidae fauna of the Caucasus is outlined. A total of 47 species are listed, three of which remain unidentified to species level. Three species are described as new: Perittia prolixa sp. nov., Elachista candidella sp. nov. and E. suffusca sp. nov. The new species are diagnosed and illustrated with photographs of the adults and genitalia. Twenty-seven species and the genus Perittia Stainton are reported for the first time from Caucasus.
Keywords: Lepidoptera, Perittia, Stephensia, Elachista, new species, Caucasus.