Omega (disambiguation)

Omega is the last letter in the Greek alphabet. See that article for more uses of the upper case (O) or lower case (o) letter as a symbol.
Omega could also mean:
Alphabet
Omega (Cyrillic), the Cyrillic counterpart of Greek omega.
Mathematics
Lambert W function, also known as the omega function.
Omega constant, a specific value derived from Lambert's W function.
Chaitin's constant, or Halting Probability, written as O.
Science
Omega loop, a protein motif
Omega-3 fatty acid
Omega-6 fatty acid
Omega-9 fatty acid
Omega particle, a subatomic particle
Omega, in sociobiology, the lowest rank in a dominance hierarchy
In cosmology, the density parameter
Technology
Omega (camera), a brand of cameras and enlargers
OMEGA Navigation System, the first worldwide radio navigation system
Omega SA, a Swiss watch company
Omega (TeX), a Unicode extension of the TeX typesetting system
Omega drivers, third-party drivers for ATI and nVidia graphics cards
Military
OMEGA, a Latvian special operations unit
Philosophy
Omega point, an idea in philosophy (eschatology) advanced by Pierre Teilhard de Chardin
Places in the United States
Omega, Georgia
Omega, Oklahoma
Omega D.C., a gay bar in Washington, D.C.
Automobiles
Opel Omega, a car model by Opel/Vauxhall
Oldsmobile Omega, another General Motors car, mechanically unrelated to the above
Fiction
Omega (Doctor Who), a fictional character from the television series
Omega (Doctor Who audio), a Big Finish Productions audio drama based on Doctor Who
The Omega Directive, an episode of Star Trek: Voyager
Omega Ranger, a character from Power Rangers: S.P.D.
The Omega Man, a 1971 science fiction film
Omega, an alias of O'Malley, a character in Red vs. Blue
Omegamon and Omegamon X, the Japanese names for the Digimon characters, Omnimon, as well as his X-Antibody counterpart, Omnimon X
Doctor Omega, a 1906 science fiction novel by Arnould Galopin
Omega (novel), a science fiction novel by Jack McDevitt
A character in the Maximum Ride series.
The Omega Lock in Transformers Cybertron.
Omega (film), a Greek thriller, directed by Vasilis Blioumis
Comic books
Omega Red, a comic book supervillain in the Marvel Comics universe
Omega-level mutant, the most powerful Marvel Comics mutants
Omega (comics), a comic book villain from the Legion of Super-Heroes
Omega Men, a DC Comics superhero group
Omega the Unknown, a 1970s Marvel Comics series created by Steve Gerber
Video games
Omega (1987 computer game), a Roguelike game
Omega (1989 computer game), a game by Origin Systems
Omega (Dead or Alive), the final boss of Dead or Alive 3
Omega (Final Fantasy), a recurring boss in the Final Fantasy series
E-123 Omega, a character in the Sonic the Hedgehog series
Omega, one of the main antagonists and the final boss of Mega Man Zero 3
Omega is the pseudonym used by Naoki Maeda for the song "MAX300" from DDRMAX: Dance Dance Revolution 6thMIX
Music
(Omega) y su Mambo Violento, a Dominican musical group
Omega and the Mechanical Animals, a fictitious rock band portrayed by Marilyn Manson on their album Mechanical Animals
Omega (band), a Hungarian rock band
Omega No. 5, an album by Scaterd Few
Omega (song), a song by Rebecca St. James
Deathspell Omega, a French black metal band
The Omega Rising, an album by Profundi, a Swedish black metal band
Omega Recording Studios, a recording school and studio located outside of Washington D.C.
Other uses
Omega (cider), a strong white cider
Omega Psi Phi, African American fraternity and member of the National Pan-Hellenic Council
Organization of Modern Extreme Grappling Arts (OMEGA), a wrestling promotion owned by Matt and Jeff Hardy
Omega Development Site, planned to be one of Europe's largest business parks, in Warrington, Cheshire