Abyss may mean:
;Sciences and philosophy
Abyssal zone, a deep extent of the sea.
Abyssal plain, a flat area on the ocean floor.
Abyss (religion), is a bottomless depth.
Abyss (Thelema), a spiritual principle within the system of Thelema.
The Abyss (novel), a historical novel by Marguerite Yourcenar, alternatively known as "Zeno of Bruges"
* The Abyss, a horror novel by writer
Robert A. W. Lowndes
* In the Abyss, short story (1896) by
H. G. Wells
;TV and movies
* "The Abyss" (1910 film), a 1910 Danish silent film starring
The Abyss", a 1989 science fiction deep-sea adventure movie directed by James Cameron
Abyss (Stargate SG-1), a 6th-season episode of "Stargate SG-1"
The Abyss (Entourage), an episode of the "Entourage" TV series
;Comics and animation
Abyss (comics), a Marvel Comics mutant superhero/villain
ZGMF-X31S Abyss Gundam, from "Gundam Seed Destiny"
* Abyss, "
Marvel vs. Capcom 2"'s Boss character.
Abyss (Dungeons & Dragons), of "Dungeons & Dragons" roleplaying game
Abyss (Soulcalibur), a boss in "Soulcalibur III"
Abyss (computer game), a 1984 text adventure game.
*Abyss, ring name of
Chris Parks, an American professional wrestler.
* Abyss, a song by Neo-classical metal band Stratovarius from their album
* Seasons in the Abyss, an album by the American thrash metal band
heraldry, the abyss is the middle of an escutcheon
Abyss Web Server, a web server commercially developed by Aprelium
* In the pit of the Abyss,
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