Gamma
Astronomical nomenclature
 Gamma 7 sector
 Gamma 7A system
 Gamma 9, the spectral class of the Sigma Draconis system primary
 Gamma 400 star system
 Gamma-601
 Gamma Argus system
 Gamma Argus II
 Gamma Arigulon system
 Gamma Canaris region
 Gamma Canaris N, an inhabited planet
 Gamma Erandi Nebula
 Gamma Eridon
 Gamma Fitzgerald
 Gamma Geminorum, a star system
 Gamma Hromi
 Gamma Hromi II
 Gamma Hydra sector
 Gamma Hydra
 Gamma Hydra II
 Gamma Hydra IV
 Gamma Orionis
 Gamma Quadrant
 Gamma (Jem'Hadar), a Jem'Hadar soldier created in the Gamma Quadrant
 Gamma system
 Gamma II
 Gamma Tauri
 Gamma Tauri IV
 Gamma Trianguli sector
 Gamma Trianguli
 Gamma Trianguli IV
 Gamma Trianguli VI
 Gamma Trianguli VI pod plant
 Gamma Vertis IV
 Gamma Vertis IV natives
 Memory Gamma

Science and technology
 Gamma 7 outpost, a Federation outpost
 Gamma burst / gamma emission / gamma particles / gamma radiation / gamma ray / gamma spectrum
 Gamma pulse generator
 Gamma radiation scan / gamma scan
 Gamma ray scanner
 Gamma emission test
 Gamma ray flux
 Gamma wave frequency
 Gamma series from the Periodic Table of Elements

Starfleet terminology
 "3-7-Gamma-Echo", Worf's authorization code in 2373
 Barclay-11-Gamma, a holodeck program
 "Barclay-Alpha-1-7-Gamma"
 "EMH music file Gamma-12"
 "Gamma sequence"
 Gamma-4
 Gamma-5, used by Chakotay against the Bothan
 Gamma shift, a duty shift on a Starfleet vessel
 "Gamma team", the team Neelix led after the crew of the USS Voyager was stranded on Hanon IV
 "Pattern gamma", Starfleet evasive maneuvers
 Pattern gamma six
 "Picard-Gamma-6-0-7-3"
 Priority code gamma, a Starfleet priority code used by Jean-Luc Picard
 Section 7-Gamma

Miscellaneous
 Alcove Gamma
 Grid 47-Gamma
 Locker Gamma-5
 Patient B-3, Priority Blue-7-Gamma
 Section 18-Gamma-12
 Section 51-Gamma
 Section Gamma-2-4
 Section Gamma-2-5
 Section Gamma-4
 Sector Gamma-3

Retconned references
 Gamma Towles II
 Gamma-ray spectrometer
fr:Gamma