Extraterrestrial may refer to any object or being beyond (extra-) the planet Earth (terrestrial). It is derived from the Latin Root extra ("outside", "outwards") and terrestris ("earthly", "of or relating to the Earth").

It may also refer to:

  • Extraterrestrial life, in scientific context, hypothetical life that exists outside Earth
  • Extraterrestrials in fiction
  • Extraterrestrial (film), 2012 film by Nacho Vigalondo
  • Extraterrestrial (TV program), a program on the National Geographic Channel
  • Outer space, the location of things that are "outside Earth"
  • E.T. the Extra-Terrestrial, 1982 film by Steven Spielberg
  • E.T. (song), song by Katy Perry

Other articles related to "extraterrestrials, extraterrestrial":

Ancient Aliens - Episodes - Season Five (2012/13)
... December 28, 2012 (2012-12-28) Researchers discuss how extraterrestrials might have hidden evidence of their visits 503 ... "Alien Power Plants ...
The Cult Of Alien Gods: H. P. Lovecraft And Extraterrestrial Pop Culture
... Lovecraft and Extraterrestrial Pop Culture is a 2005 book by Jason Colavito, a contributor to Skeptic magazine, and published by Prometheus Books ... of Lovecraft as well as the wider "extraterrestrial pop culture" (such as Stargate SG-1) ...
Laurance Doyle
... on a National Geographic Channel special titled Extraterrestrial ... seeking to compare dolphin whistles and baby babble in an attempt to make predictions about extraterrestrial communications ... could get a good indication of how advanced an extraterrestrial signal is ...