Elfin may refer to: * ELFIN, a CubeSat developed by University of California, Los Angeles * Elfin (steamboat), a steamboat that ran on Lake Washington from 1891 to 1900 * Elfin of Alt Clut, ruler of Alt Clut, seventh century Scotland *Elfin, a character from the video game '' The Peace Keepers'' * Elfin forests, dwarfed plant ecosystems * Elfin rabbit, a domestic rabbit breed * Elfin Sports Cars, an Australian sports car manufacturer * Elfin Team, a hacking group *, one of several British Royal Navy ships *, one of several United States Navy ships *Elfins, North American members of the butterfly genus ''

Callophrys The genus ''Callophrys'' consists of butterflies in the family Lycaenidae. It is apparently not monophyletic, but which of the taxa currently considered junior synonyms of ''Callophrys'' are valid genera remains to be determined. The Asian and Eu ...

See also