Bahamut (Dungeon & Dragons) The Platinum Dragon in his dragonic and favored human form.
Fou-Lu (Breath of Fire IV) is an ancient Dragon God.
Dragon Goddess (Valkyrie Crusade)
Ophis (Highschool DxD) known as the Ouroboros Dragon and the Dragon of Infinity is the strongest being in the world alongside Great Red and Trihexa.
Great Red (Highschool DxD), the Dragon of the Apocalypse.
The Winged Dragon of Ra (Yu-Gi-Oh!) despite being a "Divine Beast Type" is described as an ancient Egyptian Dragon God.
Asha (Might & Magic: Heroes) is the primordial dragon goddess of order, creator of the world of Ashan.
Tiamat (Dungeon & Dragons) is the Queen and Mother God of all evil dragons.
Akatosh (The Elder Scrolls) is the draconic god of time and the top god of the Nine Divines.
Alduin (The Elder Scrolls), the World Eater, the firstborn of Akatosh and the strongest of all dragon kind.
Quetzacoatl/Lucoa (Ms Kobayashi's Dragon Maid) is an aztec dragon goddess, though she lost her title after getting drunk and causing a scandal involving her younger sister, she still retains her powers as a deity.
Tohru (Miss Kobayashi's Dragon Maid), the daughter of the Emperor of Demise, is a supremely powerful dragon, capable of bringing about Armageddon.
Ultra Necrozma (Pokémon), "The Blinding One".
Zygarde (Pokémon), guardian of the Earth and her ecosystem.
After merging with Fou-Lu, Ryu (Breath of Fire IV) became the Yorae Dragon a divine dragon-like being whose power rivals that of all of the Endless.
Shinryu (Final Fantasy) wields such destructive power that even gods fear him.
Grima (Fire Emblem) is the Fell Dragon, wielding power massive enough to raise a legion of undead and bring the world to ruin.
Naga (Fire Emblem) is the Divine Dragon, and Grima's polar opposite.
As Naga's daughter, Tiki (Fire Emblem) is also a Divine Dragon, and possesses such vast power that if she were to degenerate, the world would be destroyed.
Daurgothoth, the creeping doom (Forgotten Realms) has transcended the limitations of the dragon species as a whole, becoming a virtually divine dragon who powers surpass that of all dragons and is near-equal to the dragon gods.
After absorbing all the demon chi of his demonic relatives, Drago (Jackie Chan Adventures) became a nigh-all powerful god-like dragon.
Kavaxas (Teenage Mutant Ninja Turtles 2012 TV series) is the lord of the demodragons that reside within the Netherworld. As a being not of the physical reality, Kavaxas possesses abilities that surpass that of mortals, being immune to conventional weaponry and psychic powers and able to raise the dead.
Known as the Dragon of the Apocalypse, Acnologia (Fairy Tail) is the strongest dragon in the world, which no one, not even Igneel the King of the Fire Dragons, could have stand a chance against him in the fight.
Velezark (Fire Emblem Warriors) is a powerful Chaos Dragon, able to consume dimensions and manipulate space and time.
The Golden Dragon (Captain N: The Game Master) is a godlike dragon whose power rivals that of all other dragons, including the Dragon Lord.
When empowered by the seven Kamidogu, Onaga (Mortal Kombat) became a nigh all-powerful being...
...able to fight and overpower the combined might of Quan Chi, Shang Tsung, and Raiden...
...and survive Raiden's self-destruct attack.
After assimilating all seven Dragon Balls, Syn Shenron (Dragon Ball GT) became the supremely powerful Omega Shenron, a self-proclaimed God of Destruction with the power to destroy the entire universe with his negative energy.
Firstbourne (Lego Ninjago Masters of Spinjitzu), the Mother of all Dragons, has every elemental power her offspring's.
Thunder (The Dragon Prince) the Archdragon of the Sky was the most recent King of the Dragons.
Sol Regem (The Dragon Prince) the Archdragon of the Sun.
Crimson Dragon (Yu-Gi-Oh 5D)
When Guilmon (Digimon Tamers) digivolved to the Mega level using Takato's anger, he became Megidramon, a monstrous dragon that wielded the full destructive power of the Digital Hazard...
...which was such that his very existence threatened to destabilize the Digital World.
Having transcended his limitations through centuries of training, the Crescent Circle Dragon Crom Cruach (Highschool DxD) has surpassed the Heavenly Dragons in their primes, being able to combat Gods and Satans
Veldora (That Time I Got Reincarnated As A Slime) as a Human. . .
. . .Veldora in his True Dragon Form