Extraterrestrial Encyclopedia may refer to one of the following:

• "The Extraterrestrial Encyclopedia: Our Search for Life in Outer Space", by Joseph A. Angelo (1991) {{ISBN|0-8160-2276-3}} (hardcover)
• "The Extraterrestrial Encyclopedia: An Alphabetical Reference to All Life in the Universe", by David Darling (2000) {{ISBN|0-8129-3248-X}} (paperback)
• "Encyclopedia of Extraterrestrial Encounters" by Ronald Story (2001) {{ISBN|0-451-20424-7}} (It was the result of a collaborative Extraterrestrial Encyclopedia Project (ETEP); excerpts online)

See also: "Encyclopedia Galactica"

• Jola-Kassa language
• Jolak Sakaraj
• Jol a leid til jardar
• Jo Lancaster
• Jolanda Batagelj
• Jolanda de Almaviva
• Jolanda de Palma
• Jolanda De Palma
• Jolanda Di Fiore
• Jolanda Jones
• Jolanda Kindle
• Jolanda, la figlia del corsaro nero
• Jolanda la figlia del corsaro nero
• Jolanda Mero
• Jolanda Neff
• Jolanda Plank
• Jolanda Polikeviciute
• Jolanda van der Meer
• Jolanda van Dongen
• Jolande van der Meer
• Jo language
• Jo language (Cameroon)
• Jolan Kleiber-Kontsek
• Jolan Kovacs
• Jolanta Danileviciute