The Dragons featured in ''LightNovel/HighSchoolDXD''.

Other Character Pages:
* [[Characters/{{HighSchoolDXDOccultResearchClub}} The Occult Research Club]]
* [[Characters/{{HighSchoolDXDStudentCouncil}} The Student Council]]
* [[Characters/{{HighSchoolDXDDevils}} Devils]]
* [[Characters/{{HighSchoolDXDAngelsAndFallenAngels}} Angels and Fallen Angels]]
* [[Characters/{{HighSchoolDXDKhaosBrigade}} The Khaos Brigade]]
* [[Characters/{{HighSchoolDXDMythologies}} Mythologies]]
* [[Characters/{{HighSchoolDXDOtherCharacters}} Other Characters]]


!!Tropes relating to all of them:
* AchillesHeel: The only things that can kill dragons are [[spoiler:dragon-slaying equipment like Issei's Ascalon or Samael the Dragon Eater. [[OurHeroIsDead Issei found that out the hard way.]]]]
* AxCrazy: The evil dragons. So much that [[spoiler:Grendel and Azi Dahaka ''fought against each other'' just to figure out who's going up against the Vali team.]]
* ChaoticNeutral:[[invoked]] According to Ddraig, in the past, most dragons just lived freely to their hearts content. These days, it depends on the dragon.
* OneGenderRace: Dragons are said to have no gender in this story. [[spoiler:That's weird, since in the short story where Asia gets her familiar, bay dragon Rassei was told to be a boy and Dragon King Tiamat, the only female of that rank; the only one specified to have no gender is Ophis, because of its unique trait as Infinite.]]
* OurDragonsAreDifferent: The most powerful race in the story are dragons themselves.


[[folder: Heavenly Dragons]]
!! Welsh Dragon Ddraig
-->'''Voiced by:''' Creator/FumihikoTachiki (Japanese), Creator/ChristopherSabat (English)

One of the two Heavenly Dragons who got sealed thanks to them fighting off the other three factions. He is the dragon who is residing with Issei as the Longinus "Boosted Gear", and thus has to put up with all of Issei's perverted antics.
* [[spoiler: ButNowIMustGo: Tells Issei that he's losing consciousness because of him using up his powers in trying to maintain Issei's soul while Great Red and Ophis are creating his new body. Issei then sheds a lot of tears [[SubvertedTrope till he hears Ddraig snoring.]]]]
* CassandraTruth: He ''did'' hear the voice of [[spoiler: the Breast Fairy when Issei accidentally summoned it instead of being able to talk to Akeno's breasts with Bilingual.]] Everyone just thinks Ddraig lost it.
* CosmicPlaything[=/=]ButtMonkey: Doesn't appreciate it when he gets called by both Ophis [[spoiler: ''and'' Great Red]] as the Oppai Dragon.
* EmbarrassingNickname: Oppai Dragon (Breast Dragon) and the Breast Dragon Emperor, which often leads him into a...
* HeroicBSOD: Played for laughs whenever someone mentions Issei as Oppai Dragon. It get's to the point that it actually makes him clinically depressed and requires medication.
* IntergenerationalFriendship: Consider's Issei to be one of his true friends seeing as his former hosts never really talked much with him.
* MeaningfulName: Ddraig is part of the Welsh phrase ''Y Ddraig Goch'', meaning "Red Dragon". It also appears on the flag of UsefulNotes/{{Wales}}.
** BilingualBonus
* MoodDissonance: [[spoiler: Tells Issei that it was fun being with him and it actually looks like he's about to say his last words to his partner. Issei couldn't even control his tears at his closest partner disappearing from him until Issei hears Ddraig '''''snoring'''''.]]
* RedBaron: Known as the Welsh Dragon and the Red Dragon Emperor.
* TheRival: Him and Albion have been going at it for centuries.
** ForeverWar: The two have basically forgotten what the fight was originally about.
* [[spoiler:TenderTears: Cried after Issei died.]]
* VitriolicBestBuds: Him and Issei in a nutshell.
* UndyingLoyalty: [[spoiler: When Euclid Lucifuge offered him a more powerful host by joining him, Ddraig quickly rejected his offer, saying that he wants to remain with Issei despite gaining the Oppai Dragon nickname and being the weakest of his past hosts, because he's a better host than all the others.]]

!! Vanishing Dragon Albion
-->'''Voiced by:''' RyotaTakeuchi

One of the two Heavenly Dragons who got sealed thanks to them fighting off the other three factions. He is the dragon who is residing with Vali in the form of the Longinus "Divine Dividing".
* EmbarrassingNickname: Odin calls him the Butt Dragon Emperor after Vali reveals his fetish for women's butts in Volume 7.
* HeroicBSOD: PlayedForLaughs seeing as his main rival is now known as the Breast Dragon Emperor, which hurts his pride. Also gets called the Butt Dragon Emperor thanks to Vali revealing his fetish.
* InSeriesNickname: Ddraig calls him the "White guy".
* MeaningfulName: His name is the ancient Greek name for Great Britain. The word was used also by some romans (instead of the official Britannia) and so it's sometimes confused as a derivation of "albus", that means "white"..
* PowerGivesYouWings: What his Sacred Gear form, Divine Dividing, looks like.
* RedBaron: Known as the Vanishing Dragon and the White Dragon Emperor.
* TheRival: Him and Ddraig have been going at it for centuries.
** ForeverWar: The two have basically forgotten what the fight was originally about.


[[folder: Dragon Kings]]
!!Blaze Meteor Dragon Tannin ([[spoiler:[[ChessMotifs The Queen]]]])

One of the former Dragon Kings who turned himself into a devil to get a piece of land in the underworld for his fellow dragon-kind to live in. He's also one of Issei's mentors in fighting. One of the few reborn devils to reach Ultimate Class, he is Issei's inspiration. Has been Top 10 in the Rating Game for decades. [[spoiler:It is revealed in Volume 14 that he is Mephisto Pheles' Queen.]]
* BadassTeacher
* CoolTeacher
* FunSize: Can shrink himself down to Rassei's size whenever the situation calls it.
* [[spoiler:[[SheIsTheKing He Is The Queen]]: The first male Queen piece featured in the series.]]
* InformedAbility: His dragon breath is equivalent to a comet crashing down on Earth. It's also used as a measuring stick for the VillainOfTheWeek.
* JawDrop: Makes an epic one when [[spoiler: Issei asks him as to what mythology is the Breast God from.]]
* LargeAndInCharge
* TheMentor: To Issei
* RedBaron: Known as the Blaze Meteor Dragon.

!! Prison Dragon Vritra

The evil black dragon who, after being vanquished by Indra, had his soul split into pieces. One of them is Saji's Sacred Gear.
* BystanderSyndrome: If it doesn't involve him, he wouldn't bother about almost anything.
* WeakButSkilled: Considered as the weakest of the five Dragon Kings, but has a wide array of skills to make up for it.

!! Chaos Karma Dragon Tiamat

The only female Dragon King out of the five Dragon Kings in the story. According to Ddraig, she hates him.
* TheSmurfettePrinciple: The only female Dragon King.

!! Gigantis Dragon Fafnir

One of the five Dragon Kings in the story, he's sealed inside Azazel's artificial Sacred Gear, Down Fall Dragon Spear. [[spoiler:In Volume 14, he makes a pact with Asia.]]
* [[spoiler: DirtyOldMan: Considering the other dragons aren't even perverted in nature, he stands out.]]
* PowerAtAPrice: To even have a pact with him, he just wants a treasure. [[spoiler: Azazel had it easy because Fafnir just wanted a rare treasure. For Asia though, it's her treasured panties.]]
* TheUnseen: [[spoiler:That is, until Volume 14.]]

!! Sleeping Dragon Midgardsormr

One of the five Dragon Kings, he's made by Loki and is currently sleeping at the ocean near Scandinavia. He's also the laziest dragon.
* AlwaysABiggerFish: Inverted. ''This [[AmbiguousGender dragon's]]'' the biggest fish in this series, even ''bigger'' than Great Red. Of course, the latter's a lot more powerful.
* BystanderSyndrome: Doesn't care much for things unless it's time for [[{{Gotterdammerung}} Ragnarok.]]
* HeavySleeper: Sleeps at the bottom of the ocean near Scandanavia.

!! Mischievous Dragon Yu-Long

The youngest of the five Dragon Kings in the story, he also accompanies the original Sun Wukong whenever the latter gets sent by Indra to somewhere. Also featured in ''JourneyToTheWest''.
* VitriolicBestBuds: With Sun Wukong


[[folder: Dragon God and True Dragon]]
!! Ouroboros Dragon Ophis
!!!Voiced by: SuzukoMimori
[[spoiler: [[{{Nerf}} Formerly]]]] The strongest dragon of the dragon race and quite possibly the most powerful character in the story. [[AmbiguousGender He/she/it]] first appeared as an old man, and then changed its appearance to a young girl. Ophis' wish is to go to the dimension where Great Red decides and kick him out of there.
* AnimalEyes
* BatmanGambit: [[spoiler: When Samael drained her powers, she actually sent out snakes that contained her power just in case, so she didn't really have 75% of her powers drained out of her.]]
* BrutalHonesty: [[spoiler: How she describes the Occult Research Club to a staff of the department store so she can ''page them throughout the entire store''.]]
* CherryTapping: [[spoiler: When Issei wakes up in his spirit form, he sees Ophis tapping the ground. When asked, all she said was ''"I'm defeating Great Red here."'']] Yes, it's a mix of funny and adorable.
* TheComicallySerious: ''"Did you want to become the Oppai Dragon instead of the Heavenly Dragon Ddraig?"'' which [[HilarityEnsues sends Ddraig into]] ''his HeroicBSOD''.
** Hell, ''anytime'' she's on-screen, it will be a mix of both hilarious and adorable.
* [[spoiler:DarkIsNotEvil: At least Issei thinks so.]]
* [[spoiler:DidWeJustHaveTeaWithCthulhu: Hangs out at Issei's place in Volume 11.]]
* GothicLolita: Its current form since according to Azazel, last time Ophis appeared was in the form of an old man.
* ImmortalImmaturity: Probably because she didn't have friends for thousands of years.
* ImplacableMan: Gets stabbed by Cao Cao using True Longinus, and she doesn't even flinch at all.
* IntergenerationalFriendship: [[spoiler: With Issei.]]
* LegalJailbait: Her current form. Hell, she has ''two black tapes that are cross-shaped'' attached to her nipples.
* TheLoad: [[spoiler: Volume 11 is pretty much her not being able to do anything at all and is a burden to the entire group.]]
** [[spoiler: This is actually justified, as losing some of her power, she was unstable. When she attacked the Grim Reapers, she accidently blew up Azazel. Also, she is effectively invincible, so she doesn't really understand the necessity of self-defense.]]
* MeaningfulName: Ophis is the Greek word for "Snake", referring to her abilities
** GratuitousForeignLanguage
* MomentKiller: [[spoiler: Dammit Ophis! Just when Issei and Ravel had a good time at the bath.]]
* MysticalWaif
* [[spoiler: {{Nerf}}: Fans think that she'll be replacing Ddraig because she has 75% of her powers drained from her.]]
** [[spoiler: Subverted about the replacing Ddraig part. She's now part of Issei's harem.]]
* NoSell: Does this to [[spoiler:[[HeroKiller Cao Cao]] and the ''freaking [[HolyHandGrenade True]] [[GameBreaker Longinus]].'']]
* OnlyFriend: [[spoiler: Considers Issei as its one and only true friend.]]
* PointedEars
* PuppetKing: S/he is considered as the overall leader of Khaos Brigade, but the ones below her are the ones who are truly running the group.
* ReallySevenHundredYearsOld: Has been around since the beginning of time.
* RedBaron: [[NamesToRunAwayFromReallyFast The Infinite One]] and the Infinite Dragon God.
* [[spoiler:RedemptionDemotion: As soon as she finally joined Issei's group, almost ''all'' of her power was drained (most of it swallowed by Samael, and then had to create Issei's body alongside Great Red).]]
* TheRival: Great Red
* StoryBreakerPower: [[spoiler: Even if she got hit with the {{Nerf}} stick, she's still ''twice'' more powerful than Issei is, which is why she's not out fighting alongside him.]]
* ThrowItIn: [[spoiler:WordOfGod states that she wasn't supposed to join the Occult Research Club but after seeing her, he and his editor decided to go ahead and let Ophis join the group.]]
* VoluntaryShapeshifting: S/he's capable of shifting from one form to another. As noted by Azazel, form for Ophis is just simply a decoration.
* WorfEffect: For someone to be the Infinite One, it sure loves to be a DistressedDamsel seeing as it got captured by both [[spoiler: Samael and Shalba.]] Justified because she only has one thing in mind: kick Great Red out of the Dimensional Gap.

!! Apocalypse Dragon Great Red

The only one who can rival Ophis and is currently residing in the Dimensional Gap. Ophis' wish is to kick him out of there while Vali wishes he could fight him. He also represents dreams.
* [[spoiler:ATasteOfPower: From Issei's perspective. Issei was shocked in awe as to how powerful Great Red really is.]]
* [[spoiler:{{Delinquent}}: How Issei describes him as: a biker gang dude who hates being stared at.]]
* DisproportionateRetribution: [[spoiler: When a monster glared at him, he tells Ddraig that he'll combine with him and wipe out ''all'' the huge monsters.]]
* DynamicEntry: [[spoiler: How he enters the underworld with Issei and Ophis at his back. While inadvertently, ''to the tune of Breast Dragon''. Guy knows how to make an entrance.]]
* PowerLevels: The ''strongest'' character of the entire series.
* {{Satan}}: In the ''[[Literature/BookOfRevelation Book of Revelation]]'', he is the seven-headed dragon that Satan assumed in the [[TheWarToEndAllWars Apocalypse]].
* StoryBreakerPower: It's a good thing he doesn't fight actively and chills around at the Dimensional Gap, otherwise the whole story would have been over.
* RedBaron: Known as the True Dragon, [[OverlyLongName The True Red Dragon God Emperor]], and [[spoiler: "D x D" ([[TitleDrop Dragon of Dragons]]).]]
* TheRival: To Ophis.
* TitleDrop: It's known as "D x D" or [[spoiler: Dragon of Dragons]].

[[folder: Evil Dragons]]

!! Crescent Circle Dragon Crom Cruach

* BackFromTheDead: [[AvertedTrope Averted]]. Unlike the other Evil Dragons Crom Cruach has never died and thus has not been modified by the Sephiroth Graal.
* {{Badass}}: Anyone who can stall a True Queen Trianna Issei and a Balance Breaker Vali for ten minutes ''at the same time'' deserves this.
** BreakTheBadass: This guy can make ''[[BloodKnight Grendel]]'' back down from a fight.
** TookALevelInBadass: He's stated to have been training his body and mind in both the Human World and the Underworld for the time that Ddraig and Albion have been sealed. When Ddraig finally meets him again he states that he may have even attained strength to that of the '''Heavenly Dragons'''.
* ComicallyMissingThePoint: He seriously has no idea why [[DirtyOldMan Fafnir]] would want Asia's school swimsuit. He even thought that Fafnir was ''going to swim''.
* MadeOfIron: He can tank Issei's Ascalon boosted Crimson Blaster attack with only minimal damage. What makes this so remarkable is that unlike Grendel he has never been modified to be immune to Dragon Slayers.
* MarkOfTheSupernatural: In his human form he has a mixture of black and blonde hair with black and gold eyes.
* RedBaron: Crescent Circle Dragon or [[NamesToRunAwayFromReallyFast Darkness Dragon]].
* VoluntaryShapeshifting: He has the ability to shapeshift from his dragon form to his human form at will.

!! Crime Force Dragon Grendel

One of the evil dragons, he was killed by Beowulf before the start of the story. He first appears in Volume 14, fully revived.
* BackFromTheDead
* {{Badass}}: Took a punch from Issei who's in incomplete-True Queen Trianna and boosted his Ascalon's power and ''still stood up like nothing happened.''
* BloodKnight: ''Really'' loves fighting way too much.
* BreathWeapon: Well, he's a dragon, of course he can breath fire.
* ILied: He told Issei that it was going to be a duel between the two of them. Then he shot out three fireballs at the other team. Issei calls him out, which he claims that he really wants to kill someone just to satisfy himself.
* LetsFightLikeGentlemen: Invoked and subverted. See ILied trope above.
* LightningBruiser: Even if he's a tall dragon, he moves pretty quick. Even a CCD equipped Issei is having a hard time against him.
* MadeOfIron: Even for a Dragon he's known to be able to tank insane amounts of damage so much that Rossweisse suspects that his defense has been further enhanced since his resurrection. He's been shown shrug off attacks from Xenovia's Ex-Durandal, an Ascalon boosted CCD Issei, and even [[spoiler:Kiba's Demonic Emperor Gram.]]
* TooKinkyToTorture: He ''loves'' pain.

!! Diabolism Thousand Dragon Azi Dahaka

* LightningBruiser: Considered by Kuroka as the strongest enemy they've fought. Given they already fought ''a god with his wolves that can kill a god'' alongside the Gremory team and Tanin included, the scale just went off the charts.

!! Eclipse Dragon Apophis


!! Yamata-no-Orochi


!! Nhǫggr


!! Ladon
One of the evil dragons who was resurrected to be used by Qlippoth.
* BarrierWarrior: Very much so.