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
HMS Elfin, one of several British Royal Navy ships
USS Elfin, one of several United States Navy ships
Elfins, North American members of the butterfly genus Callophrys

See also
All pages with titles containing Elfin
Elf
Elphin (disambiguation)
Elven (disambiguation)
Williams syndrome, a syndrome characterized by an elfin facial appearance