For other uses, see Defiance.

STARSHIP
USS Defiance
Class:	Galaxy-class explorer
Affiliation:	Federation, Starfleet
Launched:	24th century
Status:	active (2378)

The USS Defiance was a Federation Galaxy-class explorer starship in Starfleet service in the 24th century. This ship was in active service around the year 2378. (ST video game: Starfleet Command III)

No specific history or definitive final fate was established for this vessel as its name was selected for a ship by the game developers, and is placed randomly when the ship appears.

Ships named Defiance
Federation Starfleet	USS Defiance (NCC-1717, Constitution-class) • USS Defiance (Galaxy-class)
Khanate of Earth (alternate timeline)	Khanate ship Defiance

Galaxy-class class XVI explorer/exploration cruiser starships
Federation, Starfleet	Adelaide • Agrippa • Allegheny • Andromeda • Argo • Argonaut • Asgard • Asigara • Bermuda • Berry • Bolivar • Bolzano • Bonhomme Richard • Blake • Breedlove • C. Lewis • Canarias • Cervera • Challenger • Cheyenne • Citadel • Columbus • Constellation • Constitution • Dauntless • De Ruyter • Defiance • Dominance • Eagle • El Dorado • Endeavor • Enterprise-D • Essex • Excalibur-A • Exeter • Farragut • Formidable • Frontier • Galaxy • Galicia • Geronimo • Gloucester • Goodman • Hedderjin • Hood • Hornet • Hurutaka • Idaho • Jefferies • Jubei • Kinugasa • Kongo • Krieger • Lafayette • Lazarev • Lexington • Madison • Magellan • Makarov • Malevolent • Merrimac • Molotov • Monitor • Mukaikubo • Murmansk • Navarra • Ning Hai • Odyssey • Ontario • Oraidhe • Oregon • Pequod • Perseus • Persia • Renown • Republic • Reverent • Robinson • Ronald B. Moore • Rylander • Salem • San Francisco • Saratoga • Scimitar • Sequoia • Sorak • Swiftsure • Sumatra • Taylor • Tikuma • Tori • Trident • Trieste • Trinculo • Tyokai • Ulysses • Valhalla • Valiant • Venture • Victory • Vindictive • Wasp • Wichita • Worcester • Yamato (I) • Yamato (II) • Yorktown • Zhukov • unnamed Galaxy-class starships
Terran Empire, Starfleet (mirror universe)	Enterprise-D