* [[AnIcePerson Esdeath]] from ''Manga/AkameGaKill'' stands to be counted as one of the most powerful humans alive by her pure physical power alone, but she also holds in her body one of the most powerful weapons ever produced and is in complete control of it. She has been outright stated as being so powerful it will require an entire ''army'' and ten wielders of weapons similar to hers to even ''have a chance'' to beat her. She is also an insane sadist, who enjoys torturing and destroying her enemies and has ordered the populace of ''entire'' countries to be buried alive and massacred on a whim. [[spoiler:The entirety of the most powerful of the protagonist team fighting her at once were unable to even ''scratch'' her and she was ''holding'' back during their fight]].
* Berseker from ''LightNovel/FateZero'' is capable of taking on a barrage of weapons from Gilgamesh without even flinching. He later destroys Gilgamesh's [[CrazyAwesome nuclear-powered Indian airship]] with a [[CrazyAwesome F15 jet fighter]], which has the firepower of an entire armada.
** Gilgamesh himself proves more than a match for an entire army, [[spoiler:when he takes out Iskander's massive army of Heroic Spirits with a single swing of Ea]].
* Maka Albarn from ''Manga/SoulEater'' kicks the shit out of a huge group of thugs who were attacking her partner, Soul, all by herself, in UsefulNotes/{{Italy}} on one instance. Being she's committed to only killing evil humans whose souls are no longer human and have become Kishin eggs, however, she merely leaves them unconscious.
** Black Star is said to do this quite often too.
* Pretty much all of the Hokuto and Nanto warriors of ''Manga/FistOfTheNorthStar'' can quite easily mop the floor with entire legions of punks and soldiers.
* Both [[TheHero Killy]] and [[DarkActionGirl Sana-Kan]] from ''Manga/{{Blame}}'' (who are essentially [[TheRival opposite sex versions of each other]] in [[TheStoic personality]], [[{{Determinator}} will]] and even WeaponOfChoice) rack-up literally ''thousands'' of kills in the manga alone. [[spoiler:But seeing as how both of them are thousands of years old, it could well be in the ''billions'' by now]]. [[WeaponOfMassDestruction Their signature guns]] make such a [[ThereIsNoKillLikeOverKill massive kill-count]] plausible.
* Hiraga Saito from the ''LightNovel/TheFamiliarOfZero'' light novel/anime series stopped an army of 70,000 for about two days by targeting the commanders and flustering their movements. His predecessor destroyed an army of 1000.
** In the anime, Derflinger notes that [[{{Tsundere}} this was, ultimately, easier than dealing with Louise]]. This [[spoiler:ended up killing him]]. Essentially, [[BastardGirlfriend Louise]] is more harmful to Saito than [[spoiler:dying a bloody death]]. Let that sink in.
* Guts from ''Manga/{{Berserk}}'' is called the "Hundred Man Slayer" because he tore apart the good part of an entire company of Blue Whale Knights, which numbered at least a hundred men, singlehandedly. And this is ''before'' he took up his calling as the merciless demonslayer known as the Black Swordsman. Guts, at the time of this writing, has left this title ''far, far behind'' in his personal body count of both men and demons, cementing his status as an all-around {{Badass}}.
** At one point during the Griffith rescue arc, an enemy commander insists to his nervous men (who are waiting to ambush Guts and the Hawks) that the one hundred men story must be an exaggeration, and [[TemptingFate no one could possibly do that]]. To give a proper impression of just how doomed the commander and his men are, Guts is currently running on pure apeshit UnstoppableRage after seeing the state that Griffith was in following his year's worth of ColdBloodedTorture, and is tearing apart every Midland guard between the Hawks and the way out. Yeah. Nice knowing you, fellas.
** When the Knights of the Holy Iron Chains encounter the trails of bodies left behind by Guts on the entrance of Misty Valley, it takes them a while to realize it was all done by one man with one weapon, not a whole army with cannons and other heavy artillery.
* Ogami the [[Manga/LoneWolfAndCub Lone Wolf]] once killed 70 other samurai in one fight. This in a manga that's supposed to be realistic...
* In ''Anime/ShadowSkill'', it is said that a Kuruda mercenary defending his friends and family is a match for a thousand soldiers. Gau Ban proves this in the assault on Blorahan by taking out the entire Soulfan army by himself.
* In ''Manga/DragonBall'', Son Goku defeated the Red Ribbon Army, the strongest army in the world at the time ''by himself''. ''At age 12''. When he told his friends, who had come to back him up the look in their faces was priceless.
** Everyone in later ''Dragon Ball'' and all of ''Anime/DragonBallZ'' can be considered this.
** Special mention should go to Dr. Gero's androids; he was the mastermind behind the aforementioned Red Ribbon army, and consequently decided to beat Goku at his own game in retribution: Creating one individual with the power of an entire army. Androids 19 and 20 were formidable fighters even after the Z Fighters' TrainingFromHell in preparation for them, Androids 17 and 18 required the Saiyans to go through even more Training from Hell in order to change which end of the CurbStompBattle they were on, and Android 16 was strong enough to hand 17 and 18 their heads... though he was never an adversary to them, or the Z Fighters for that matter.
*** And, of course, we have Dr. Gero's mightiest android, Cell, crafted with his evil and [[AllYourPowersCombined the Z Fighters' cells]]. His imperfect form is capable of fighting evenly with 16 and can grow stronger with every human he absorbs. His perfect form, meanwhile, is capable of Curb Stomping all of the Z Fighters at once [[spoiler:except Super Saiyan 2 Gohan]], and can [[FromASingleCell regenerate from any injury]], [[spoiler:[[SuicidalCosmicTemperTantrum even his own self-destruction]], [[CameBackStrong and come back even more powerful]].]]
* In the second season of ''Anime/MobileSuitGundam00'', [[PaperThinDisguise Graham Aker/Mister Bushido]] has a "One-Man Army license", carte blanche from the Federation government to do whatever the hell he wants as part of the anti-resistance task force. Unlike this trope however, while he easily ''could'' go around wiping out whole bases, he mostly just ignores orders and has inconclusive duels with TheHero. Members of the group behind the GovernmentConspiracy, unsurprisingly, also have one.
** ''Film/Gundam00AwakeningOfTheTrailblazer'' introduces Captain Shaman and the Mobile Armor Gadelaza, which carries ''over a hundred and fifty'' GN fangs! The sheer speed at which he racks up kills is mind-boggling.
** For that matter, any of the Gundam Meisters (or the Sol Braves squadron, made up of six of the best mobile suit pilots in the world), who are shown taking down entire enemy battlefleets single-handedly throughout the final fight (it says something about the sheer overwhelming numbers the enemy possessed that this hardly slowed them down.)
* [[BornWinner Kira Yamato]], [[BrokenAce Athrun Zala]], [[TheBerserker Shinn Asuka]], and [[BigBad Rau le Creuset]] of ''Anime/MobileSuitGundamSEED'' and ''Anime/MobileSuitGundamSEEDDestiny''. [[WoobieDestroyerOfWorlds Stella]] may also count once she gets inside the [[WeaponsOfMassDestruction Destroy]], and [[CriminalAmnesiac Neo Roanoke]] becomes one after gaining the Akatsuki.
** Kira takes the cake really. While everyone else there (and Kira too at times) still had back up, for the majority of Seed and Destiny Kira was the only active pilot of his team with only their battleship as back up. He still came out on top, even when in Destiny he was fighting two other armies at once.
* And of course, [[AcePilot Amuro Ray]] and [[Anime/MobileSuitGundam the original Gundam]]. [[http://www.nicovideo.jp/watch/sm4926226 Proof here]].
** For those without Nico Nico accounts, the video is of every kill Amuro made in the original series. 142 on-screen kills. And since some of those were Mobile Armors or battleships, the actual number of Zeon soldiers he killed is quite a bit higher. This all took place in a couple of months, remember.
** From the same series, Char Aznable. His claim to fame before appearing on screen? Soloing ''five battleships in a single battle''. He's so good that he didn't take Amuro Amuro's ''skills'' (as opposed as his SuperPrototype) seriously until he pulled something similar (namely taking down nine mobile suits and two warships, with three other MS and another cruiser dealing with the ''White Base'', in ''less than three minutes'').
* ''Anime/MobileSuitGundamWing'''s five Gundam Pilots have to be this by default, since each was sent down to Earth by himself with orders to kick [[TheFederation the Alliance]]'s butt, and none of them had any idea that the others existed until after everything started. So you can imagine the kind of carnage that ensues once they start working together...
* When the RedshirtArmy gets wiped out by Precia's MechaMooks in the first season of ''Anime/MagicalGirlLyricalNanoha'', Chrono steps up to the plate... and proceeds to mow down Precia's welcoming committee with little effort much to Nanoha's astonishment, then tells Nanoha and her friends to handle the out of control [[MineralMacguffin Jewel Seeds]] while he blazes a trail to [[BigBad Precia]] on his own.
** The other characters eventually gain this trait in later seasons too, soloing waves of {{Mooks}} on their lonesome. For example, Signum once demonstrated her new upgrade by showing up as the only reinforcement against an invading squadron of [[MechaMooks Gadget Drones]], and destroying all fifty of them in one shot.
*** Earlier in the series, Hayate had wiped out four groups of 48 of the same {{Mooks}} with a single spell. With one hand figuratively [[PowerLimiter tied behind her back]].
* ''Manga/{{Vagabond}}'' has "Musashi and the Seventy." The Yoshioka swordsmen are not all FacelessGoons (in fact at least three have full names and a number have internal dialogues), but ''EGAD'' UsefulNotes/MiyamotoMusashi is right up there with Guts; it ends up catapulting him from a local celebrity to a national figure.
** However, the effort seriously weakened Musashi and gave him injuries that are still hurting him in the present. It was more BrokeYourArmPunchingOutCthulhu than OneManArmy.
* ''Manga/TheSevenDeadlySins'' Each individual Holy Knight is considered the equal of a thousand men. When the northern barbarians invade with an army of three thousand men, two knights working together are able to wipe the army out with minimal effort. The new generation of Holy Knights is even stronger [[spoiler:if only because they use demon blood to boost their powers]].
* Minato Namikaze in ''Manga/{{Naruto}}'' is the target of a "flee on sight" order from the opposition during the war. Later, he takes out an entire force by himself. [[spoiler:He was also the fastest ninja alive, repeatedly facing [[BadAss A]] and Killer B (the 2nd and third fastest ninja alive) multiple times and beating them, even in the first encounter A-at his maximum speed, couldn't touch him]].
** Note what that said. It was not a "kill on sight" order like (allegedly) some modern intelligence services have with regard to highly wanted terrorists. '''Flee''' on sight. Minato's mere ''presence'' was enough to send the enemy running. [[spoiler: And now he's [[BackFromTheDead back]]]].
** Sasuke was considered this during his training with Orochimaru. He defeated 1000 Oto Ninja without killing any of them or suffering so much as a scratch.
** In the Fourth Shinobi World War arc, [[spoiler:Kabuto resurrects a bunch of these to fight the good guys, including many of the former Kages and the ''real'' Uchiha Madara]].
** The Sandaime Raikage was able to single-handedly match a a force of ''10,000 enemy shinobi'' for [[DyingMomentOfAwesome three days]], though they ultimately killed him, and could also go toe to toe with [[EldritchAbomination Gyuki]] and fight him till both were exhausted.
** Naruto is one himself now, with each of his clones being a Kage level threat. And then there's PhysicalGod Pain, who soloed the entire village of Konohagakure by himself.
*** [[spoiler:Now that Naruto has tamed Kurama, he is now a TRUE OneManArmy. He [[CurbstompBattle curbstomps]] Five Biju all at once.]]
** Madara Uchiha [[spoiler:annihilates most of the relatively undamaged Fourth Division by using his powers for a ColonyDrop x2!]]
*** Even before that [[spoiler:he was fighting them with his usual Sharingan arsenal-he was ''untouchable''. Even one of his Katons was so strong that a whole army of Suiton users had to counter him]].
*** [[spoiler:The anime pretty much sums it up as this when the fight between Madara and the Fourth Division begins. On one side is Madara standing all alone and looking utterly bored with the upcoming fight. On the other is the entire Fourth Division visibly terrified, sweating nervously, and having to make an effort to psych themselves up in order to even charge at Madara.]]
** [[spoiler:Obito Uchiha defeats the entirety of the First Division using Gedo Mazo, getting the sealed Kinkaku and Ginkaku like he was taking a summer stroll.]]
** Pretty much every upper-tier ninja qualifies as this, to be honest. The Third Hokage (an example himself in his prime) believed that Orochimaru could take on an entire ''country'' by himself; Sasori claimed to actually ''have'' taken on an entire country by himself; Deidara has multiple high-level explosives on his person and ''is'' a living nuclear-esque bomb (his suicide attack has a radius of ''ten miles''); Pain -- either as a collective or just a healthy Nagato -- is capable of taking on an entire ninja village and ''destroying'' it, and is evenly matched to a six-tailed Kyuubi... the list goes on.
* ''Manga/{{Bleach}}'':
** Each division is a minimum of 200 members. However, each Shinigami Captain is considerably more powerful in battle than every member of their respective squadron put together. However, even by the standards of captains, Aizen and Yamamoto stand out. Aizen is capable of defeating multiple captains, even when ganged up on and yet even he was nervous about taking on Yamamoto in one-on-one ''Shikai'' combat. In Bankai, Yamamoto is ThePowerOfTheSun.
** The Espada are so powerful only shinigami captains can fight them. The highest ranks of the Espada cannot be defeated by a single captain and required group effort from even captain-class characters to defeat. Starrk and Barragan were confirmed to be examples of WalkingWasteland even before they became Espada. However, like the captains, they also were not strong enough to handle Aizen's strength.
** The combined might of the Royal Guard is stronger than the combined might of the entire Gotei 13. There are over 6,000 members of the Gotei 13. There are only 5 members of the Royal Guard.
** Ichigo has a unique level of power for any character. When he hit his peak, he was curb-stomping Aizen. [[spoiler:And the final arc confirms it was only a fraction of his true power]].
** The Stern Ritter are capable of fighting captains. As a result, sixteen of them were able to defeat just under three thousand shinigami (there are around six thousand in total) in a matter of minutes, including several captains, and they only took five casualties in return. Even the captains couldn't handle them.
* ''Manga/ElfenLied'''s Lucy, in both the anime and the manga, was known for gaining a massive headcount (literally), as in the escape scene at the beginning of the story.
* ''Manga/{{Saiyuki}}'''s Hakkai killed one thousand demons with nothing but his own hands and a small knife. Unfortunately for him, this led to a KarmicTransformation because "bathing in the blood of a thousand demons" turns you into a demon. Unfortunately for everyone else, this makes him [[SuperpoweredEvilSide a lot more powerful]]. And he's the TeamMom!
** Seiten Taisei (Goku's SuperpoweredEvilSide) and [[{{Tykebomb}} Nataku]] count as well. In the latter's case, Nataku's father considers it an insult that general Kenren's army could substitute for him.
** In ''Saiyuki Gaiden'', in their last stands Kenren takes out a good number of the weird genetically engineered animals that Li Touten created, and Tenpou the same for a lot of men (he arguably would have won if his [[BlindWithoutEm glasses hadn't been knocked off]]).
* ''Manga/BlackLagoon''. Revy, Ginji, Fabiola, but especially Roberta. That chick wields a .50 caliber sniper rifle one-handed, and she could shoot you with her belt buckle.
* ''Manga/OnePiece'':
** Main protagonist Monkey D. "[[NiceHat Straw Hat]]" Luffy:
--->'''Marines:''' Hey, Straw Hat! Where's your army? Enies Lobby's forces number in ten thousands!\\
'''Luffy:''' Yeah... and I'm alone. GET OUT OF MY WAY!
** Followed by the thousands of Marines and agents being decimated. RubberMan plus CharlesAtlasSuperpower equals CurbStompBattle.
** The rest of his crew also falls under this category. In order of decreasing strength, [[BloodKnight master swordsman]] Zoro and [[ChefOfIron master chef]] Sanji have [[CharlesAtlasSuperpower Charles Atlas Superpowers]], [[MrFixIt master shipwright]] Franky is a {{Cyborg}} that could match the Terminator, [[MusicalAssassin master musician]] Brook is a [[DemBones living skeleton]] that can butcher someone and sheathe his sword [[YouAreAlreadyDead before they even realize that he's attacked them]] (and [[spoiler:after the Time Skip, he can use the [[GhostlyChill chill of the underworld]] in his attacks, and [[MasterOfIllusion hypnotize his enemies with his music]]]]), [[BadassBookworm master archeologist]] Robin has a SelfDuplication-esque power that lets her multiply her physical strength (which isn't much more than that of the average human) almost infinitely, master doctor Chopper has a MultiformBalance that he uses to great effectiveness, and Nami and Usopp, the only two people in the crew who could get away with being called ordinary humans physically (setting aside their superhuman agility and endurance, that is, but [[WorldOfBadass virtually everyone in the series has that]]), are both smart enough to outwit their opponents while using nature as their weapon; master navigator Nami uses a WeatherControlMachine, more often than not resulting in a bad case of ShockAndAwe for her opponents, and master sniper Usopp uses a versatile arsenal of attacks for the first half of the series, and [[spoiler:FantasticFlora]] after two years.
*** Zoro took out a hundred bounty hunters in Whiskey Peak on his own. They surrounded him while he was standing on a rooftop, and he disappeared and proceeded to beat the crap out of them shortly after. This was very early in series, and he's gotten vastly stronger since then.
** [=CP9=] also counts; they've been trained since childhood to become superhuman assassins. But none fit more than DragonInChief Rob Lucci, the only antagonist who has ever been able to match Luffy's CharlesAtlasSuperpower…and even surpass it. The only thing that made him lose to Luffy was the latter's greater willpower, and their battle took every last ounce of it; when Luffy finally managed to knock Lucci unconscious, he could barely muster the strength to speak.
** Fisher Tiger also counts, climbing the Red Line and raiding a Marine base by himself. Not to mention freeing all the Celestial Dragons' slaves. Note that the Red Line is ''over 6 miles tall''. So Fisher Tiger climbed a mountain taller than Everest, then immediately took down an entire Marine base (including [[OneHitKill oneshotting]] a Vice Admiral) without taking a moment to rest.
** Generally speaking, the more powerful crews such as Shanks' and Whitebeard's consist of [[UpToEleven an army of One Man Armies]]
** At the time of Dracule "Hawk-Eye" Mihawk's introduction, Gin referenced him as being one man destroying 50 ships. This was not a difficult feat for Mihawk; he just did it because they were there, and he, [[LonelyAtTheTop the world's greatest swordsman, was bored]].
** Capone Bege ate a fruit that made him a fortress for minature armies, when an object or human goes out of the barrier, the object or human expands to normal size. So, he is ''literally'' an one man army.
** The three Marine Admirals are the only human antagonists pre-TimeSkip who could put the Straw Hats on the losing end of a CurbStompBattle; all three of them are not only ferociously powerful, but have [[NighInvulnerability Logia]] Devil Fruit powers. [[AnIcePerson Aokiji]] casually froze the ocean solid and then incapacitated the three strongest members of the crew at once, [[LightTheWay Kizaru]] casually knocked down a multi-story tree with one kick and then almost killed the Straw Hats before [[RetiredBadass Silvers Rayleigh]] showed up to subdue him; and [[MagmaMan Akainu]]…oh, he takes the cake.
*** Admiral Akainu is the series' penultimate example during the war. Once he'd made up his mind to kill Luffy, not even the combined efforts of Jinbei, Ivankov, Inazuma, Crocodile, Marco, and pretty much every remaining Whitebeard pirate could do anything more than slow him down. And this is AFTER getting into a one-on-one fight with Whitebeard and living to tell about it. To top it off, not only is he still standing at the end of the war, but shortly thereafter he goes after the Blackbeard pirates...who promptly get the hell out of dodge when they hear that Akainu is in the area.
*** And Luffy's grandfather Garp asks Fleet Admiral Sengoku himself to hold him back when that happens, or he will kill Akainu, singlehandedly. Sengoku being the only person Garp trusts to be physically capable of holding him back.
** And the admiral [[BlindJustice Fujitora]] ([[HandicappedBadass Issho]]) does not disappoint the admiral legacy: he has a Devil Fruit that controls ''[[GravityMaster gravity]]'', which allows him to throw ''[[ColonyDrop meteors]]'' at his enemies. It's also been stated that the other new admiral, Ryokugyu (real name unknown), is in the same league as Fujitora, though as of yet nothing else has been revealed about him…or her. I did say "''nothing'' else".
** The aforementioned "Dark King" Silvers Rayleigh was Gold Roger's second in command. He is seen easily handling an Admiral (Kizaru), and says the only reason he is not also taking down a Pacifista and protecting Luffy's crew simultaneously is because of his age and his lack of action in several years, not to mention he would not call more attention to himself by straight up killing an Admiral.
*** But Gold Roger himself, is probably the best example of this, as it was once stated by Garp, that he single-handedly defeated the entire army of an unknown country, all because they have insulted his crew. It was stated that only one that could equal him was Whitebeard, and that was back when the latter was in his prime and before [[DentedIron the number of fights he was in took their toll on him]].
* Several characters in ''{{Hellsing}}'' (Anderson, Walter, The Captain, Seras), but most notably Alucard. Not only is he capable of single-handedly slaughtering hordes of ghouls or normal humans but [[spoiler:when he has his full power unleashed, he is capable of summoning familiars made from the souls of every being whose blood he has drained, numbering in the ''millions'']].
* Sousuke from ''LightNovel/FullMetalPanic''. Even at the age of ''eleven'', he was shown to have single handedly killed at ''least'' fifteen trained soldiers during one battle in a war zone without breaking a sweat. [[StalkerWithACrush Gauron]] saw the aftermath, and it was LoveAtFirstSight. Gauron himself is a OneManArmy as well.
* Demon Eyes Kyo from ''Manga/SamuraiDeeperKyo'' is credited in the prologue and throughout the series as a samurai who once slayed 1000 men in a single battle.
* ''Webcomic/AxisPowersHetalia'' has the AnthropomorphicPersonification of England vs. America and a whole bunch of soldiers. England still manages to get America at his mercy, [[spoiler:though in the end [[IWantMyBelovedToBeHappy he can't bring himself to shoot]].]]
** It's also interesting that there are moments of allegory in which they literally are a one man army; the most prominent example would be China single-handedly defeating both Japan and Germany with just a wok.
** And then there's Hungary taking out the entire Prussian army by herself. Probably another instance of allegory, but still [[CrowningMomentOfAwesome pretty freaking awesome.]]
* ''Manga/MahouSenseiNegima'':
** Any high level mage probably counts as this. The most extreme example is [[CrazyAwesome Jack Rakan]], who, well, [[http://www.mangafox.com/manga/mahou_sensei_negima/v26/c238/7.html just look]]. Even [[BigBad Fate]] prefers to run rather than fight him.. Nagi also counts, being even more powerful than Rakan.
--->'''Rakan:''' Are you sure you wanna take us on? I mean, you don't have that much firepower.\\
'''Commander:''' We have two entire fleets of airships and over three thousand elite soldiers beyond the next rise! Even you can't possibly...\\
'''Rakan:''' Like I said: are you sure? You don't have that much firepower!
** And now Negi is worthy of such title, slaughtering through hundreds if not thousand of shadow demons while barely slowing down. Other members even lampshade it by saying that he doesn't leave any enemies for them to fight.
* Fallan Denzell from the [[CutShort criminally short-lived]] ''DoubleArts'' is rumored to have taken on and defeated 50 bandits single-handedly. Eventually, though, he sets the record straight: ''it was actually 500''.
* The SuperRobotGenre can be summed up as "a single guy in a giant robot is more than enough for vanquishing an entire alien invasion / interdimensional {{Eldritch Abomination}}s / whatever wants to destroy the world this week."
** ''Anime/MazingerZ'' is interesting because it both plays straight AND subverts the trope. The HumongousMecha eponymous is certainly powerful enough to trash an entire army (and in the original manga, in one scene Kouji estimates its strength can be equal to at least five percent of the total combat strength of the world's major military powers)... but when [[TheHero Kouji]] has to fight more than two {{Robeast}}s at once, he struggles (Mazinger versus Devilman movie) or loses (Mazinger versus Great General of Darkness movie, Anime/{{Mazinkaiser}}...). Its sucessors, ''Anime/GreatMazinger'' and ''Anime/UFORoboGrendizer'' have been seen taking on entire armies and winning (the former in one manga chapter penned by GosakuOta).
** More Super Robot examples: ''Anime/KotetsuJeeg'', ''Anime/{{Raideen}}'', ''Anime/CombattlerV'', ''Anime/VoltesV'', ''Anime/{{Daimos}}'', ''Anime/{{Zambot3}}'', ''Anime/{{Daitarn3}}''... all of them are more than capable of single-handily winning against one entire army or achieving things an army is unable to. ''Anime/SpaceRunawayIdeon'' and ''Anime/GunBuster'' are most likely the most triumphant examples of the SuperRobotGenre. The former is capable of cutting one planet on half. The latter is capable of wipe out hundreds of thousands of aliens on One. Single. Freaking. Battle.
** Even then, ''[[Manga/GetterRobo Ryoma Nagare]]'' stands out, because of that time when he didn't have his mech... and stormed the enemy capital by himself anyways. And would have won if the bad guy didn't summon four [[AttackOfTheFiftyFootWhatever kaijus]] to help.
** Any [[Anime/NeonGenesisEvangelion Evangelion Unit]] or Angel is this, due to being all but invulnerable to anything up to a antimatter positron cannon (powered by a nation's entire power supply). Or nukes. Asuka futher proves this point by, in ''Anime/EndOfEvangelion'', lobbing a BATTLESHIP into an entire tank and artillery brigade. A description of the very first Angel might give a better image: "...chewed through a Tank Battalion in four minutes flat, destroyed three dozen aircraft and took more firepower than the entire Pacific Fleet could dish out, right up to the use of Strategic scale N2 weapons. The UN and JSSDF threw everything they had at it and barely slowed it down at the cost of over a thousand lives and half a billion US dollars". This was one of the weaker Angels.
* In the 17th episode of ''LightNovel/{{Durarara}}'', Shizuo Heiwajima takes on over a hundred supernaturally powerful and durable {{Knife Nut}}s at once using only GoodOldFisticuffs. He doesn't just win -- he ''[[CurbStompBattle Curb Stomp]]s them'' while suffering nothing worse than a number of shallow cuts and scratches.
-->'''Shizuo:''' How many are here? Let's just go with ''a lot''. Yeah, this should be enough. With this, [[TheFettered I think I can finally go all-out]].
* [[TheVerse The Naritaverse]] also gives us ''LightNovel/{{Baccano}}'''s [[spoiler:[[BadassNormal Claire Stanfield]], [[RedBaron a.k.a.]] [[TheButcher Vino]]]], known for most of the anime only as [[MookHorrorShow Rail Tracer]]. The train contained two groups of a dozen or so armed thugs apiece. [[RoaringRampageOfRevenge He slaughtered nearly all of them singlehandedly]] with what seemed like [[ProfessionalKiller very little effort]], and still found time to [[spoiler:[[TortureTechnician torture Czeslaw]] [[EvenEvilHasStandards for trying to get more innocent passengers killed]], [[BatmanGambit convince Ladd to throw himself off the train]], [[ArsonMurderAndLifeSaving save Isaac and Miria]], and [[FourthDateMarriage propose to Chane]] while [[WackyMarriageProposal covered in blood]]]].
** Jacuzzi Splot most definitely qualifies, what with raiding eighteen Mafia speaksies single-handedly within one night. Given that each hideout usually has at least a dozen mooks or so...that's about....[[StunnedSilence yeah]]...
* In ''Manga/RurouniKenshin'', Kenshin is perfectly capable of taking on numerous mooks and dispatching them with pure speed. He doesn't have the title "Strongest of the Patriots" for nothing. One of his former allies Tani, a corrupt Isshin Shishi states that an entire military unit wouldn't be enough to handle him.
** Also, Sanosuke took out 200 mooks while simply relieving stress, and he's far outclassed by Kenshin.
** Really, most of Kenshin's allies and enemies fall under his trope.
* In ''Manga/FullmetalAlchemist'', King Bradley proves himself to be this during the battle with the Briggs soldiers; for one thing, the guy takes down a ''tank'' by himself.
** With a ''sword'', no less.
** Greed is able to take out just as many, if not more, Central soldiers and he destroys a truck with his bare hands. Helps that he can make himself NighInvulnerable.
** The State Alchemists are viewed as such in-universe. The Ishbal war had been dragging on for years until the State Alchemists were sent in. It ended, quickly, abruptly and messily.
*** And the viewers get to see just why when [[spoiler: Roy takes on [[EldritchAbomination Envy]] in a RoaringRampageOfRevenge. For some perspective, Envy is an AxCrazy shapeshifter, possesses an insane HealingFactor to the point where it's practically immortality, and can transform into a ten-story-tall massive green monster. [[PlayingWithFire Roy]] is [[YouKilledMyFather very]], ''[[ItsPersonal very]]'', '''''[[UnstoppableRage very]]''''' pissed. The battle is completely, utterly one-sided and takes Roy all of some thirty minutes of constant KillItWithFire, with a side of [[EyeScream flash-broiled eyeballs]], to reduce Envy into a pathetic worm-thing.]] Note that it took that long in large part because Roy ''wanted it to be slow''. And turning into that giant monster form proved to be a literally huge mistake, as it just made Envy a bigger target.
* Shou, the main character of ''{{Akumetsu}}'' manages to take down 50 people unarmed before being subdued at one point.
* In ''Anime/BeastWarsNeo'', Big Convoy was told to be the "One Robot Army". However, since most of the time he's seen leading a group of Maximals, it could be just an InformedAbility.
* ''VideoGame/InazumaEleven'', [[JerkAss Fudou]] tries to be this during the third season's match with Korea's Red Dragon. The result? He pisses other member off. This happens again with Brazil's captain.
* In ''Manga/AhMyGoddess'', Lind the Valkyrie's job description is essentially that of Heaven's own One Woman Army. Belldandy has the skills and potential but not the personality to be the same.
** Satan Hild could potentially qualify, one of her smaller clones that only had a thousandth of her full strength could her its own when Lind attacked her, and she was mostly just defending herself till she convince Lind that WorldGoneMad [[NotMeThisTime wasn't her doing]].
* ''LightNovel/ACertainMagicalIndex'' actually has a few: namely the saints, the level 5 espers, Knight Leader, and Ollerus, just to name some (proven by Accelerator and Misaka, the #1 and #3 espers respectively, both taking out large military groups on their own.) [[AllThereInTheManual Supplementary material]] explains that this is how you achieve the rank of level 5 Esper; it denotes an Esper powerful enough to function as a OneManArmy if not a PersonOfMassDestruction.
* [[BigBad Naraku]] from ''Manga/InuYasha'' has a tendency to send out armies of {{youkai}} [[{{Mook}} mooks]] against his enemies. This is problematic for several reasons:
** [[HotBlooded Inuyasha]] has an InfinityPlusOneSword which is legendary for its ability to slay a hundred youkai with a single swing. That claim to fame turns out to be based on its ''weakest'' power.
** [[FuelMeterOfPower Miroku]] is capable of being a One Man Army due to Naraku having cursed his lineage to be carry a hole in their right hand that acts like a black hole. It will eventually [[BlessedWithSuck consume]] Miroku's life but, in the meantime, he's [[CursedWithAwesome learned]] how to harness its power as a weapon.
** [[HandicappedBadass Sesshoumaru]] eventually gains a sword which, as [[MasterOfIllusion Byakuya]] learns the hard way, is [[ChainReactionDestruction capable]] of taking out ''[[WeaponOfMassDestruction thousands]] with a [[FantasticNuke single swing]]''.
* Gintoki in ''Manga/{{Gintama}}'' can be this when he feels like it, which is pretty much never. It's stated to be one of the reasons no one bothers Otose in Kabukichou. Most people would rather deal with the nose-picking lazy bum living above her shop instead of the ''White Demon.''
** Other characters, including villains, are shown to be this as well, Okita, Hijikata, Katsura and Takasugi (usually in flashbacks), Housen, Kamui and Jirochou have all mowed down mooks by the truckload.
* Wolfwood in ''Manga/{{Trigun}}''. Vash is a PersonOfMassDestruction.
* Manji in ''Manga/BladeOfTheImmortal''. It helps that the "Hundred-Man Killer" has Wolverine-like healing powers.
* Kongo Agon of ''Manga/EyeshieldTwentyOne'' is a One-Man OpposingSportsTeam, playing nearly every position and covering almost all of Deimon's plays by himself.
* Eight years before the storeline of ''Manga/DailyLivesOfHighSchoolBoys'' started, there was this "[[RedBaron Archdemon]]", [[TheBully the menace of all kids around town]]. Ten {{Bully Hunter}}s allied to "pacify" her... and they could barely make a draw with Archdemon.
* The anime short ''Anime/{{Kigeki}}'' centres around the Black Swordsman (not the same one from ''Berserk''), who is hired by a young Irish girl to take out an army coming to attack her village. The Swordsman obliges, and calmly slaughters all 200 fully armored knights on horseback in a few hours. [[spoiler:Then he eats them for good measure.]]
* In ''Manga/ShamanKing'' Hao (Zeke) becomes so powerful with Spirit of Fire that [[spoiler: he destroys an entire naval fleet designed to kill him and a shaman with a spirit stronger than Spirit of Fire.]] Then [[spoiler: he becomes the Shaman King. Instant annihilation if he even looks at you.]]
** Amidamaru also fits. He killed an entire army that came to capture him. Of course, he dies right after.
* Pretty much all the main characters of ''Manga/{{Beelzebub}}'' except [[NonActionGuy Furuichi]]. Subverted, however, when Oga attacks Demon High. All the demons are amazed that a mere human is defeating them by himself, but he finally gets fed up and points out that he's ''not'' alone--[[BadassAndBaby he's had baby Be'el on his back the entire time]].
-->'''Oga:''' Get this through your thick skulls! The one you are fighting right now IS YOUR KING!
* The [[AttackOfTheFiftyFootWhatever Four Beasts]] in ''Manga/{{Toriko}}''. [[spoiler:The Mounturtle ''alone'' took a barrage of the combined might of the Human World, which could raze 10 million square kilometers (enough firepower to destroy ''all'' of Japan 27 times over) without a ''single scratch'', the Gaoh [[FlashStep avoided]] orbital bombardment from satellites while destroying the 100 meter long Mammoth Tanks, the King Octopus Kong destroyed said tanks with ease, and Invaitdeath just ''melted'' everything with his poison. Then the [[BigDamnHeroes Four Kings]] show up and defeat these beasts in the span of ''three chapters''.]]
* Riki in ''Manga/GingaNagareboshiGin''. He might have been the only dog remaining in Ohu for now, but he keeps fighting bears ''all by himself'' as if it's easy hunting.
* Many mages in ''Manga/FairyTail'' could count as one; Mystogan has destroyed branches of and those who are supporting a guild that was attacking Fairy Tail at the time, however only one has done this feat "on-screen". Erza Scarlet once noted that her hardest fight was against 100 knights. In the Pandemonium game of the [[TournamentArc Grand Magic Games]], she once again defeated 100 foes. Live before an entire stadium audience this time.
* Levi from ''Manga/AttackOnTitan'' is claimed to be as effective as an entire brigade. This is proven true during his battle with [[spoiler:the Female Titan]] who he inflicts serious damage on, when highly trained soldiers died fighting against it and failed to even injure it.
** The titan shifters as a whole are all this. [[spoiler: The Female Titan carved her way through most of the Survey corp and beat Levi's handpicked elite squad before losing to Levi himself.]] The Rouge Titan killed over 40 titans in a single battle where most humans struggle to kill one.
* In ''BreakBlade'' there is Girge. When you look up OneManArmy in the dictionary, his picture pops up. This guy can single-handedly take out some of the most advanced Golems, fight an elite troop of five and kill every single one of them with a Golem ''that has only one arm and leg left'' and smash the highest ranking soldiers of the enemy nation ''twice'' without breaking a sweat. And that's only [[PunchClockHero nine-to-five stuff.]] His being such a {{Badass}} is the only reason he is allowed on the battlefield because of certain...[[AxCrazy personality]] [[BloodKnight issues]] of his.
* ''Manga/YuGiOh'': [[AttackOfThe50FootWhatever Exodia the Forbidden One]] is said to have "defeated a thousand armies in a single night." The [[PhysicalGod Egyptian God Cards]] also qualify.
* Deconstructed, [[AesopAmnesia but otherwise]] [[BrokenAesop played extremely straight]], in ''SwordArtOnline''. Kirito is so [[InvincibleHero overpowered]] in online games that he develops an egotistic complex that he can protect everyone and win everything on his own. This hits him hard when he's overpowered by a ZergRush and a real life psychopath, making him realize he's not as powerful as he thinks.
* ''Anime/PuellaMagiMadokaMagica'':
** Homura Akemi. Her use of [[TimeStandsStill Time Magic]] combined with a HyperspaceArsenal strapped to her left arm makes her a literal example, as she shows in Episode 11 when she pulls ''a whole armoury's worth of hardware out of there between shots''. [[spoiler:[[TheJuggernaut Too bad it just isn't enough to defeat Walpurgisnacht]]]].
** [[spoiler:Madoka Kaname, thanks to multiple timelines' worth of karmic destiny being dumped into her, courtesy of Homura's time-travel shenanigans. In one timeline, [[OffscreenMomentOfAwesome she is said to take out the aforementioned Walpurgisnacht]] in ''a single shot'']].
* In ''Manga/MagiLabyrinthOfMagic'', a Dungeon holder is one on their own due to the power of the Djinn they wield, especially Sinbad and Kouen due to the fact both of them hold multiple Djinns. Muu is a notable example since he is a Fanalis and cannot use magic but makes up for it for through sheer speed and strength. Aladdin is most definitely one as a Magi. As proven during the war in Magnostadt, he could have wiped out the entire Reim army if he wanted to.
* In ''Anime/CrossAnge'', Ange herself has killed squadrons of dragons by herself, as her OffscreenMomentOfAwesome in episode 6. Unfortunately, that means she hoards all the kills while her [[TeethClenchedTeamwork teammates are]] living in PerpetualPoverty. Even [[TheCaptain Salia]] herself hasn't heard of anyone killing all the dragons by their lonesome till she saw Ange in action.
* ''Manga/TokyoGhoul'' has several of these, primarily the Special Class Investigators of CCG and high-ranked (SS and SSS) Ghouls.
** Ken Kaneki develops into one, spending the final arc of the original series breaking through an army on his quest to rescue [[spoiler: Yoshimura, Koma, and Irimi]]. His presence alone turns the tide of the battle, leaving numerous mooks and high-ranked Investigators wounded.
** Kishou Arima is a legend for being one, earning him the title "CCG's Grim Reaper". His introduction at the finale of the original series involves him standing unharmed in a massive chamber ''filled'' with dozens of Ghoul corpses. He is utterly pristine, other than a little bit of blood splattered on his [[StoicSpectacles glasses]].
** The One-Eyed Owl is a villainous one, pretty much leaving a massacre in its wake whenever it appears. [[spoiler: Both Owls -- Yoshimura and Eto -- turn out to be capable of taking on whole armies of Mooks effortlessly, and leave the named CCG characters critically injured]].
** Juuzou Suzuya was made an Investigator ''solely'' because he is one, which he proves in his first major combat operation. He uses a motorcycle to jump into a second-story sniper's nest and massacres everyone inside within seconds. His abilities frequently earn him comparisons to Arima, the other example of a teenager rapidly climbing the ranks of CCG.
** The sequel provides the addition of [[spoiler: Seidou Takizawa]], having [[TookALevelInBadass taken many a level]] since becoming a HalfHumanHybrid. Calling his massacre of the first squad he encounters a CurbStompBattle is putting it lightly, and he follows this up with smacking TheHero around like a ragdoll. Justified, since he was ReforgedIntoAMinion using [[spoiler: Yoshimura's organs]].