- Role: Heavy Cruiser 
- Origin: United Federation of Planets
- Introduction: 2364 
- Status: In service as of 2379 
- Primary User: Federation Starfleet
- Number Built: >6
- Crew: 1,014 
- Max. Evacuation Limit: 15,000 persons 
- L x W x H: >642 m x ±468 m x 140 m 
- Habitable Internal Area: 800,000 m² 
- Deflector Shield System
- Type X Phaser Array x 12–14 
- Photon Torpedo Launcher x 3 
- Speed (Nominal Cruising): Warp 6  or 392 c 
- Speed (Maximum): Warp 9.65  or 1,977 c
- Range (Nominal): 2,744 ly in seven years.  
- Captain’s Yacht x 1 
- Medium Shuttle x 10 
- Shuttlepod x 12 
- Cargo Shuttle x 10 
- Work Pod x 5 
- Danube-class runabout x ±3 
Known Ships († for destroyed ships)
- NCC-1701-D USS Enterprise †,
- NCC-70637 USS Galaxy,
- NCC-71099 USS Challenger,
- NCC-71807 USS Yamato †,
- NCC-71832 USS Odyssey †,
- NCC-71854 USS Venture, and
- Multiple other ships.
- The Galaxy-class was designed for Star Trek: The Next Generation (1987–1994) by Andrew Probert.
- Ships of the class, including the USS Enterprise-D, have appeared in all subsequent Star Trek TV series and even in the feature film Star Trek Generations.
- Star Trek: The Next Generation—Technical Manual (1991), p.5, “The USS Enterprise is categorized as an Explorer, the largest starship in a classification system that includes cruiser, cargo carrier [….]” The largest and most heavily defended of cruisers are classified as heavy cruisers.
- (TNG) “Encounter at Farpoint.”
- Star Trek: Nemesis, the chronologically most recent bona fide prime universe story.
- (TNG) “Rascals.” Standard crew complement varies according to mission profile and it also includes non-crew family members.
- ST: TNG—Technical Manual (1991), p.176.
- There is no firm consensus on the physical dimensions of the Galaxy-class. It has been recently accepted that 642.5 meters is the length of the class. If that figure is true, then using the Master System Display as a guide would yield a height of about 140 m. The width of the class remains in dispute and an estimation has been used.
- ST: TNG—Technical Manual (1991), p.2. Note: this is 33% more area than in the Pentagon.
- ST: TNG—Technical Manual (1991),p.123–125. Note: one Phaser array is concealed in docked mode.
- ST: TNG—Technical Manual (1991),p.128, 130. Note: one launcher is concealed in docked mode and each launcher can fire ten independently guided Photon torpedoes simultaneously.
- ST: TNG—Technical Manual (1991),p.57.
- Warp Scale used here is the one from DITL.org.
- (TNG) “Q Who.”
- ST: TNG—Technical Manual (1991), p.2.
- See #11.
- ST: TNG—Technical Manual (1991),p.164.
- ST: TNG—Technical Manual (1991),p.158.
- (DS9) “Emissary.” It’s plausible since the Enterprise transported three runabouts to DS9 and later operated a fourth in “Timescape.”