This is a list of fictional military organizations, including military branches of political bodies or governments, fringe or guerrilla groups, privately run militia, and autonomous and unconventional militaries, such as special forces, that do not fall under traditional military hierarchies. It is not to be confused with the governing body itself (i.e. Federation, Empire, etc).
- Alliance of Democratic Nations - (Command and Conquer: Red Alert)
- The Alliance - Alliance of Humans, Elves,and Dwarfs (Warcraft series)
- Amalgamated Regional Militia - Larry Niven's Known Space series
- Andorian Imperial Guard - (Star Trek: Enterprise)
- Animal Guard - (Animal Farm)
- Ankh-Morpork and Sto Plains Regiments (Discworld novels)
- 35th Llamadosian Foot
- Duke of Eorle's First Heavy Infantry (nicknamed the Pheasant Pluckers)
- Duke of Quirm's Middleweight Infantry
- Lord Selachii's Light Infantry
- Lord Venturi's Heavy Infantry
- Lord Venturi's Medium Dragoons
- Quirm Lancers
- Royal Sto Plains Riflers (named from their habit of "rifling" through the enemy's pockets after battle)
- Sir Samuel Vimes' First of Foot
- Army of the Southern Cross - (Robotech, Super Dimensional Cavalry Southern Cross)
- Alpha Tactical Armored Corps (ATAC) - (Robotech, Super Dimensional Cavalry Southern Cross)
- Bajor Milita - (Star Trek: DS9)
- Blue Fleet - (Blue Submarine No. 6)
- Borogravian Army (Monstrous Regiment, Discworld)
- 10th Borogravian Light Foot Infantry (nicknamed the Ins-and-Outs and the Cheesemongers)
- Cardassian Orders - (Cardassian military divisions, Star Trek: DS9)
- Colonial Navy - (Original Battlestar Galactica)
- Colonial Warriors
- CoDominium Space Navy and Marines - (Falkenburg's Legion Series)
- CoDominium Armed Services - Predecessor to the Space Navy and Marines
- Fleet Marines - Technical Eilte
- Garrison Marines - Riot supression
- Line Marines
- 501st Provisional Battalion
- 42nd CoDominium Line Marines
- Navy
- Contact (Military during Idiran-Culture War,The Culture)
- Special Circumstances - military arm of the Culture during peacetime
- Crusaders - (Final Fantasy X)
- Dinochrome Brigade - (Keith Laumer's BOLO series)
- Earth Federal Forces - (Universal Century Gundam)
- Earth Federation Air Force
- Earth Federation Army
- Africa
- East Asia
- Eastern Europe
- Europe
- North America
- Pacific
- South America
- Southeast Asia
- Kojima Battalion (Mobile Suit Gundam: The 08th MS Team )
- 08th Mobile Suit Team (Mobile Suit Gundam: The 08th MS Team )
- Kojima Battalion (Mobile Suit Gundam: The 08th MS Team )
- Earth Federation Navy
- Earth Federation Space Forces (EFSF)
- Tianem Fleet (Mobile Suit Gundam)
- Earth Force -(Babylon 5)
- Exofleet - (Exosquad)
- Fairy Air Force - (Yukikaze)
- The Fighting Dukaki - Futurama (animated series)
- The Fish Speakers - (God Emperor of Dune and succeeding novels)
- Global Defense Initative (GDI) - (Command & Conquer)
- Grayson Space Navy (GSN) - (Honor Harrington series of novels)
- Gungan Grand Army - (Star Wars)
- Galactic Empire Armed Forces - (Star Wars)
- The Helghast Armed Forces - (Killzone)
- The High Guard - (Military Forces of the Systems Commonwealth, Andromeda)
- Agrosy - Space branch
- Lancers - Planetary Forces
- Holy Iron Chain Knights - (Berserk)
- The Honoured Matres - (Heretics of Dune and Chapterhouse Dune)
- The Horde - (Orc army, Warcraft series)
- Galatic Patrol (Lensman series)
- Lensmen
- Imperial Navy (The Foundation series)
- Imperial Space Navy (The Mote In God's Eye)
- Forces of the Imperium (Warhammer 40,000)
- Imperial Guard
- Cadian Shock Troopers
- Catachan Jungle Fighters
- Armageddon Steel Legion
- Space Marines (Adeptus Astartes)
- Imperial Inquistion (Warhammer 40,000)
- Alien Hunters (Ordo Xenos)
- Daemonhunters (Ordo Malleus)
- Witch Hunters (Ordo Hereticus)
- Sisters of Battle
- Imperial Guard
- Isengard Uruk-hai Army - (The Lord of the Rings: The Two Towers)
- Japanese Special Self-Defense Forces (JSSDF) - (Gasaraki)
- Japanese Strategic Self-Defense Forces (JSSDF) - (Neon Genesis Evangelion)
- The King's Own Fusiliers - (Soldier Soldier)
- Klingon Defense Force - (Star Trek)
- Laburec - Abh Space Navy (Crest of the Stars)
- The Last Alliance of Men and Elves - (Tolkein)
- Forces of Mordor - (Sauron's armies, The Lord of the Rings)
- Neo-Zeon - (led by Haman Kahn, Double Zeta Gundam)
- OMNI Enforcer (Oppose Militancy and Neutralize Invasion) - (Gundam Seed)
- Organization of Zodiac (OZ) - (Gundam Wing)
- Peoples Navy (PN), previously/later Republican Navy - (Honor Harrington series of novels)
- Peacekeepers (Farscape)
- Rangers - (Also known as Anla'Shok, Babylon 5)
- White Star Fleet
- Grand Army of the Republic - (Clone Trooper Army, Star Wars)
- Robotech Defense Force - (Robotech)
- Royal Manticoran Navy (RMN) - (Honor Harrington series of novels)
- Royal Manticoran Marine Corps (RMMC) - (Honor Harrington series of novels)
- Royal Spartan Army - (Go Tell The Spartans and Prince of Sparta by S.M. Stirling and Jerry Pournelle)
- Sardaukar - (House Corrino troops, Dune)
- Shutoral National Defense Army - (Maschinen Krieger ZbV 3000)
- Shutoral Army High-Speed Transport Corps
- 300th Armored Mobile Infantry Regiment "Rengemark"
- The Sourage - (Evil Undead army, Warcraft III)
- Space Troopers - (Bill, the Galactic Hero)
- Star Command - (Buzz Lightyear of Star Command)
- Starfleet - (Star Trek)
- State Military - (Fullmetal Alchemist)
- State Alchemists (Fullmetal Alchemist)
- Terran Confederation Navy (Wing Commander series)
- Terran Federation Armed Forces (Starship Troopers)
- Navy
- Army
- Marine Corps
- United Citizen Federation - (Paul Verhoeven's Starship Troopers)
- Mobile Infantry (Army)
- Fleet (Navy)
- United Earth Directorate Expeditionary Fleet - (Starcraft)
- Atlas Wing - Ground based forces
- Cronus Wing - Space forces
- United Earth Sphere Alliance Military - (Gundam Wing)
- United Nations Expeditionary Force (UNEF) - (The Forever War)
- United Nations Intelligence Taskforce - (Doctor Who)
- UN Protectorate Envoy Corps - (Altered Carbon)
- UN Spacy - (Macross)
- United Nations Space Command (UNSC) - (Halo: Combat Evolved and Halo 2)
- UNSC Marines
- Orbital Drop Shock Troopers (ODST) "Helljumpers"
- Spartans
- United Nations Space Force (UNSF) - (Zone of Enders)
- United States Colonial Marines (USCM) - (Aliens)
- Warrior Monks - (Final Fantasy X)
- Zanzibar Land Guards (Metal Gear 2: Solid Snake)
- Zeon Military Force (ZMF) (Universal Century Gundam)
- Zeon Space Attack Force
- Conscon fleet (Mobile Suit Gundam)
- Primus fleet
- Zeon Mobile Assault Force
- Chimera Corps (a flying circus formed of Zeon's elite mobile suit aces, sans Char Aznable)
- Granada Space Defense Unit
- Zeon Earth Attack Force
- Army
- Afrika Korps
- Caracal Corps
- Navy
- Green Siren Corps
- Mad Angler Corps
- Manta Ray Corps
- Naga III Corps
- Red Dolphin Corps
- Sea Serpent Corps
- Air Force
- Army
- Zeon Space Attack Force
- Zodiac Alliance of Freedom Treaty (ZAFT) - (Gundam Seed)
Guerrilla, Revolutionary, and Terrorist Organizations
- Anti-Earth Union Group (AEUG) - (Zeta Gundam)
- AVALANCHE - (Final Fantasy VII)
- Blake Guard - (Word of Blake milita, Battletech)
- Blue Cosmos - (Gundam Seed)
- Brotherhood of Nod - (Command & Conquer)
- Cardassian Liberation Front - (Cardassian Rebellion, Star Trek: DS9)
- Forces of Chaos (Warhammer and Warhammer 40,000)
- Chaos Space Marines
- Daemons
- The Lost and the Damned
- Beasts of Chaos (Warhammer Fantasy)
- Hordes of Chaos (Warhammer Fantasy)
- Confederacy of Independent Systems, Droid Army - (Star Wars)
- COBRA - (G.I. Joe)
- Darah Dan Doa (Blood and Prayer) - (Indonesian terrorist group, Splinter Cell: Pandora Tomorrow)
- Devil Army (also known as the Dark Army, G Gundam)
- Delaz Fleet - (Gundam 0083)
- Desert Dawn - (Gundam SEED)
- Eridanus Human Rebels - (Halo: The Fall of Reach and Halo: First Strike)
- The Fremen - (Dune)
- Fedaykin (Fremen Death Commandos)
- Freedom Party - (Falkenburg's Legions series)
- Global Liberation Army (GLA) - (Command & Conquer: Generals)
- Helot Movement (SPLA) - (Go Tell The Spartans and Prince of Sparta by S.M. Stirling and Jerry Pournelle)
- Human Liberation Front (HLF) - (Ghost in the Shell)
- Green Tower - (Ghost in the Shell Stand Alone Complex)
- Kokoku Brigade - (Ghost in the Shell Stand Alone Complex)
- Jenoma People's Army - (Ghost in the Shell Stand Alone Complex)
- Knights of Genetic Purity - (Andromeda)
- Maganac Corps - (Gundam Wing)
- Mariemeia Army - (Gundam Wing: Endless Waltz)
- Maquis - (Star Trek: The Next Generation, Star Trek: Deep Space Nine and Star Trek: Voyager)
- Mavericks - (Mega Man X)
- Mercenary Army - (Mercenary-backed Earth independence movement, Maschinen Krieger ZbV 3000)
- 1st Foreign Legion Corps
- 4th Air Support Platoon
- 34th A.F.S. (Armored Fighting Suit) Platoon
- 44th A.F.S. Battalion
- 48th New South Wales
- 90th All Mercenary Company
- 1st Foreign Legion Corps
- Mission Hills Protective Association - (Falkenburg's Legions series)
- Mutant Liberation Front - (X-Force)
- Neo-Terran Front (NTF) - (led by Admiral Aken Bosch, Freespace 2)
- Neo-Zeon - (led by Char Aznable, Gundam: Char's Counterattack)
- Northwest Secessionist Forces (NSF) - (full name rarely used, Deus Ex)
- Patriot army - (New Washington forces, Falkenburg's Legions series)
- Sabotage Corps - (Predecessor to Bureau of Sabotage, The Dosadi Experiment)
- The Sect - (Mamoru Oshii's Kerebos films and manga and Jin-roh)
- SNA (Scottish National Army?) - (mentioned in brief and only as acronym, guerrilla group opposing Norsefire control in Aberdeen and Glasgow, V for Vendetta)
- Suliban Cabal -(Star Trek: Enterprise)
- Terran Rebellion - (Star Trek)
- Three Ships Alliance - (Cylne Faction, Gundam Seed)
- Trieze Faction - (Rebel OZ faction supporting Trieze Khushrenada, Gundam Wing)
- Rebel Alliance - (Star Wars)
- The Red Army (Discworld)
- The River Pack - (Falkenburg's Legions series)
- White Fang - (Gundam Wing)
- Zekistan Liberation Front - (Full Spectrum Warrior)
- Armed Guardian Services (ARGUS), Incorporated - (Splinter Cell: Pandora Tomorrow)
- Association of International Mercenaries (AIM) - (Jagged Alliance computer game series)
- Band of Hawks - (Berserk)
- Raiders
- Barton's Bulldogs - (Falkenburg's Legions series)
- Carrera's Wedge - (Broken Angels)
- Displace International - (Splinter Cell: Pandora Tomorrow)
- Dreadnoks - (G.I. Joe)
- Falkenberg's Legion - (Falkenburg's Legions Series by Jerry Pournelle)
- Gurlukovich mercenaries - (Metal Gear Solid 2)
- Hammer's Slammers - (Hammer's Slammers series by David Drake)
- Knight Sabers - (Bubblegum Crisis)
- SeeDs- (Final Fantasy VIII)
- Serpent Tail - (Gundam SEED Astray)
- Wolf's Dragoons - (Battletech)
- Wulong mercenaries - (Front Mission 3)
- Vulture - (Gundam X)
- X-Corporation - (X-Men)
Militias and Other Paramilitary Organizations
- Bahram Militia Group - (Zone of Enders)
- Capital Area Security Police Agency - (Mamoru Oshii's Kerebos films and manga and Jin-roh)
- Kerebos Panzer Corps
- Crossbone Vanguard - (Meitzer Ronah's, and later Berah Ronah's, private army, Gundam F-91)
- The Digidestined - (Digimon)
- Hellsing Organization - (Hellsing)
- Jedi -(Star Wars)
- League Militarie - (V Gundam)
- Shrikes
- Londo Bell - (Gundam:Char's Counterattack)
- Maverick Hunters - (Mega Man X)
- Military Police - (Paramilitary forces of Paradigm City, Big O)
- NERV - (Neon Genesis Evangelion)
- Preventers - (Gundam Wing: Endless Waltz)
- Repliforce - (Mega Man X)
- Shuffle Ailliance - (G-Gundam)
- Sailor Soliders - (also known as Sailor Scouts, Sailor Moon)
- The Woodchuck Militia - Scrooge McDuck universe
- X-Force - (X-Force)
- ARC Troopers - Advanced Recon Commandos (Star wars: Clone Wars)
- Black Chamber - (Metal Gear: Ghost Babel)
- Black Lance - (Wing Commander)
- Black Tri-Stars - (Group of Ace Zeon pilots, Gundam)
- Canaries - (Red Dwarf)
- Cobra Unit - Metal Gear Solid 3
- Cyclops Commandos - (Zeon special forces squad, Gundam 0080)
- Dead Cell - (Metal Gear Solid 2)
- Foxhound - (Metal Gear series)
- G.I. Joe - (G.I. Joe)
- Military Assault Command Operations (MACO) - (Star Trek: Enterprise)
- Midnight Fenrir Corps (Zeon special forces team, Mobile Suit Gundam 0079: Zeonic Front)
- MITHRIL - (Full Metal Panic)
- Rainbow - (Rainbow Six)
- SOLDIER - (Final Fantasy VII)
- The Specials - (United Earth Sphere Alliance elite mobile suit corps, Gundam Wing)
- Stargate Command - (Stargate SG-1)
- Super Hero Operational Command and Control - (Marshal Law)
- Screaming Eagles
- Titans - (Zeta Gundam)
- Titans Mobile Suit Instructor Corps, later taking the name New Decides - (Gundam Sentinel)
- Titans Test Team (TTT) - (Advance of Zeta)
- ULTRA-BOX (Metal Gear 2: Solid Snake)
Warrior Castes and Other Culturally-Based Fighting Forces
- Aspect Shrine - (Eldar Warrior cults, Warhammer 40,000)
- Broods - (Zerg formations, Starcraft)
- Fire Caste (Shas) - (Tau military caste, Warhammer 40,000)
- Fleet of Particular Justice - (Covenant fleet, Halo: Combat Evolved and Halo 2)
- The Jaffa - (Goa'uld military strength, Stargate SG-1)
- Kull - (Goa'uld System Lord Anubis' Shock Troops, Stargate SG-1)
- The Jem'Hadar - (The Dominion's military branch, Star Trek: Deep Space 9)
- Templar - (Protoss Military and Explorer caste, Starcraft)
- Warrior Caste - (Minbari military, Babylon 5)
- Warrior Caste - (Military caste of the various Clans, Battletech)