Dragon is a mythological creature name that works on a pet through sheer aspiration — you're not saying this animal actually breathes fire (though cats, sometimes). You're saying this animal has power that the word dragon implies: ancient, formidable, a creature that commands space. It belongs to the same naming category as Titan, Phoenix, and Hydra: names that set a high intention even when the pet is currently asleep on the couch.
Mythological Power Names
Dragon occupies the bluntest end of the mythological power name category — it's the thing itself, not a deity or legend associated with the thing. That directness is either maximally confident or maximally uncomplicated, depending on your perspective. Chinese Shar-Peis and Komodo Dragon"-adjacent pets obviously suit it — but the name has found traction on large dogs of any breed where the owner wants to maximize the gap between the name's ferocity and the pet's actual friendliness.
Fantasy Gaming and Pop Culture Influence
Dungeons and Dragons, Game of Thrones, and a decade of dragon-heavy fantasy content have made Dragon a usable name rather than an eccentric one. Owners in the fantasy gaming space who choose it are making a genre declaration that most fellow fans will immediately recognize. Wizard and Merlin operate in the same owner demographic. The name also works without any fantasy context for owners who just like the word's sound and weight.
The Counter-Reading: Common Word as Name
Dragon is a common English noun, which means using it as a proper name creates a persistent ambiguity — in conversation, listeners may not immediately register it as a name rather than a description. "My dog Dragon" reads slightly differently than "my dog Draco" or "my dog Drake," which carry the dragon association with more name-like phonetics.