While dragons tend to have a reputation of being Nigh-Invulnerable, sometimes this isn't enough: Not all dragons are clad in titanium-strength scales, or sometimes they need extra protection from dragon-killing weapons that would easily pierce through their normal scaly hides.
When this is the case, it's time for even the dragons to suit up in a layer of crafted blacksmith armor. Not only may it shield a potential weak spot (like a single missing scale), it looks cool to wear, doubly so if it's silver or gold in color.
Dragon armor is more common if a Dragon Rider is also involved, as the armor provides places to affix a saddle and harness to. Can also occur if the dragon is presented like an ordinary Beast of Battle: armor for war horses and even for War Elephants existed in real life, so if dragons were used in warfare it's easy to imagine armor being invented for them.
No relation to The Dragon (just to be clear).
- Digimon: Ryudamon is a small dragon Digimon that wears samurai armor for heightened defense. Its evolutions Ginryumon, Hisharyumon and Ouryumon all follow the theme of dragons in armor.
- Armed Dragon cards in the Yu-Gi-Oh! card game, which go through Evolutionary Levels. Armed Dragon LV 3 upgrades to LV 5, to LV 7 (and that can be replaced with LV 10, optionally). They're an increasingly-humanoid series of red dragons wearing dark, shiny metal armor.
- The Duel Masters card game has races called "Armored Dragon" and "Armored Wyvern", both of which are essentially dragons in Powered Armor. Some carry guns. Some are covered in guns.
- Future Card Buddyfight features the Armordragon class of monsters, which is what it sounds like, including both standard and anthropomorphic dragons that wear armor.
- Dungeon Keeper Ami: In Frenzied Fortification, Ami starts armoring her dragons for the upcoming battle:
the two dragons breathing fire into the furnaces. Goblins with a small pot full of molten metal crawled over them, coating the dragons' scales with a layer of molten steel.
- In the Inheritance Cycle books, Saphira wears heavy armor to any big battle, and apparently the old Riders used dragon armor too, though it's brought up that making armor for dragons is difficult because of how they grow larger and larger as they get older.
- In the Age of Fire books, the scaleless gray dragon AuRon got the dwarves to make him some armor.
- Dragons in Naomi Novik's Temeraire series are commonly armored in layers of chain mail and leather for serious combat. In addition they love anything sparkly, so any that can obtain them will add pieces that are mostly decorative. Temeraire has a platinum breastplate (a gift from his captain, Laurence) of which he is very proud.
- The Hobbit has Smaug the dragon, who encrusted his soft underbelly with diamonds and other gemstones. He has a single uncovered patch just above his heart, which Bilbo notices and passes on (accidentally, by way of an eavesdropping thrush) to Bard the Bowman, who is able to spot and shoot it by looking for the one patch which isn't reflected in the moonlight.
- Wings of Fire: Dragons have been described as wearing armor on several occasions; for instance, Whirlpool wore impenetrable armor during his attempt to murder Tsunami. While dragon scales have been described as jewel hard, other dragons can easily get past scales to score a fatal blow in battle.
- Not an actual dragon, but a huge suit of articulated plate armor for a dragon appears in Margle's armory from Too Many Curses. When the various suits of armor become animated to battle Tiama, the dragon armor breathes fire just like its wearer once could.
- The Dragon from The Masked Singer Australia wears a set of fancy medieval knight's armor.
- Dungeons & Dragons
- Some of the rule books allow for armor constructed for dragons.
- Draconians in Dragonlance wear armor frequently.
- The fluff mentions from time to time dragons being armored by jewels and coins as in the Smaug version above after so many time sleeping over their treasure.
- Legend System: As part of the 3rd Circle of the Dragon racial track, you gain a suit of armor, fluffed as having really hard scales. What's interesting is that this armor can be enchanted like normal armor, allowing you to sense enemies, blast people to the ground and even slice nearby opponents up with your scales! Of course, nothing stops you from wearing armour before this, or even fluffing this circle as more traditional metal armor.
- Pathfinder: Sovereign dragons always go clad in their distinctive golden armor. Humanoids find this very impressive, but other dragons think it's kind of ridiculous.
- Warhammer: Age of Sigmar:
- The Stardrakes are immense magical dragons used as steeds by Stormcast Eternals who wear armor plating on their chests and legs.
- Despite being the strongest and toughest of its kind, Bigteef, the Maw-Krusha ridden by the Megaboss Gordrakk, wears an armoured helmet made of crudely beaten metal.
- Shows up in multiple Final Fantasy games. For example, the dragons of Cardia Island in Final Fantasy, or the red and blue dragons found as Random Encounters in Final Fantasy IV.
- In Heavensward for Final Fantasy XIV, Midgardsormr comes clad in battle-armor once he ascends to his rideable, flying mount form at the end of Azys Lla.
- In The Legend of Spyro: Dawn of the Dragon, you will occasionally come across different pieces of dragon armor to wear; each piece has its own special ability, and collecting a full set will give you a bonus ability with it.
- In Skylanders, Blades and Drobot are both dragons who wear armor. Drobot has steampunk-styled Powered Armor while Blades wears full plate armor.
- Drakes in Battle for Wesnoth. The law-keepers go Up to Eleven with a full set of golden armor over their scaly body.
- Mahou Daisakusen has Miyamoto the samurai dragon, who of course wears samurai armor.
- Several dragons in World of Warcraft. The intro of Cataclysm in particular shows Deathwing getting his armor pinned to his scales. However Deathwing's armor is not to protect him, but to keep his body held together.
- Argorok, a main boss in the The Legend of Zelda: Twilight Princess, wears a full suit of armor all over its body. In order to defeat it, Link has to destroy said armor to reach its hidden weak spot.
- The dragons of Panzer Dragoon are all decked in stone-like armor - the same used by the Empire's airships - that doubles as Anti-Gravity devices.
- The wyverns used as mounts by the Wyvern Rider class in the Fire Emblem series frequently don armor. If they aren't armored initially, they often gain some once their rider promotes to a Wyvern Lord.
- Pokémon Sun and Moon, has the Pseudo-Legendary line, of Jangmo-o, Hakamo-o, and Kommo-o, whose scales are used to this effect. This shows up in all three of their abilities giving immunities. Bulletproof protects them from ball and bomb moves, Soundproof protects them from sound-based moves, and their Hidden Ability, Overcoat, protects them from Weather Effects and Powder moves.
- Both the Heterodyne dragon and the Baron's dragon in Girl Genius.
- Dragons: Riders of Berk:
- When faced with anti-dragon arrows, Hiccup realizes they have to start developing armor for their dragons to wear to better protect themselves. Too bad the dragons don't find it very comfortable.
- The Armorwing and Boneknapper dragon species create makeshift armor out of scavenged metal and dragon bones, respectively.
- My Little Pony: Friendship Is Magic: In the episode "Gauntlet of Fire", Dragon Lord Torch is never seen without his black plate armor. In addition, most of the dragons (except Garble) competing in the Gauntlet don armor, showing how dangerous the ordeal is. This includes Princess Ember, though in her case it's mostly to hide her identity from her father.
- Granamyr from He-Man and the Masters of the Universe (1983) sports a helmet that his horns protrude through.