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Locator logo showing the galaxy's Gamma Quadrant.

Map of the Gamma Quadrant.

The Gamma Quadrant is one of the four quadrants of the Milky Way Galaxy.

History and specifics

The inhabitants include (but are not limited to) the Changelings, Vorta, Jem'Hadar and T-Rogoran, all of whom are members of the Dominion, an interstellar empire that controls most of the quadrant. (DS9 episodes: "Emissary", "The Jem'Hadar")

In 2369, Benjamin Sisko and Jadzia Dax discovered a wormhole near Bajor and space station Deep Space 9 that connected the Alpha Quadrant to the Gamma Quadrant, the discovery of which eventually led to the Dominion War. (DS9 episodes: "Emissary", "Call to Arms")


After the Dominion War, the Dominion permitted Federation starships to renew the exploration of the Quadrant. Commander Elias Vaughn commanded the USS Defiant in the first exploratory mission in 2376. The crew of the Defiant made first contact with the Vahni Vahltupali, the Yrythny, the Cheka, the D'Naali, the Nyazen and the USS Valkyrie, which had been assimilated by the Borg. (DS9 - Mission Gamma novels: Twilight, This Gray Spirit, Cathedral, Lesser Evil)

In 2383, the USS Enterprise began a joint exploration mission in the Gamma Quadrant with the Romulans. The USS Robinson also spent several months in the Gamma Quadrant at the same time. (ST - Typhon Pact novels: Plagues of Night, Raise the Dawn)

Scientific phenomenon

The Gamma Quadrant planet Meridian exists in another dimension for sixty years, existing for only a few days when it phases back into normal space. (DS9 episode: "Meridian")

Races and cultures

See also: Category:Gamma Quadrant races and cultures and Gamma Quadrant races and cultures
Gamma Quadrant races and cultures
AarruriAlorexAmaralanAnndiiAresaiArgrathiAscendantBekkirCalligarChangelingsChekaChiaranD'NaaliDosiDrangEav'oqEcocidErrikang nativeEunacianGroxxinHorginHuntersIconianInamuriInnerol V nativeJem'HadarKaremmaKendarayanKendoLampusanMerakordiNyazenOurentiaOverneParadaPrentaraRakhariRindamilSaltah'naSen EnnisSkrreeaStakoronT-RogoranTeplanThepnossenToskTrelianUradiVahni VahltupaliVantonVerathanVortaV'XajiWadiYaderanYentisYrythnyZarianunnamed Gamma Quadrant races and cultures Gamma Quadrant locator logo.

Alternate realities

In another alternate reality, the Klingon Empire had conquered most of the Alpha and Beta Quadrants prior to 2380. Once the conquest of Bajor was complete, it planned to invade the Gamma Quadrant through the wormhole. (TNG novel: Q & A)

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Alpha Quadrant | Beta Quadrant | Delta Quadrant | Gamma Quadrant


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