Argos is the name of Odysseus's dog in Homer's Odyssey — the dog who waits twenty years for his master to return and dies the moment he sees him again. It is, without much contest, the most emotionally devastating pet name in all of Western literature. Owners who choose it are either deeply romantic about loyalty or have not read the relevant passage closely.
The Mythological Weight
In the Odyssey, Argos recognizes Odysseus instantly after two decades — a demonstration of fidelity that no human character in the poem matches. The name has carried that symbolic charge ever since. For owners who value loyalty as the central virtue in a dog, Argos is a direct and literary way to say so. Irish Wolfhounds and Great Danes — large, noble-looking breeds with relatively short lifespans that make the loyalty theme feel appropriate — appear frequently with this name.
The Sound
"Argos" is two syllables with a hard stop opening and a clean finish. It has the slightly formal sound of a name that means something beyond itself, which is part of its appeal. It doesn't abbreviate into an obvious nickname, which means the pet keeps the full name rather than becoming "Argy."
Counter-Read
The literary association is so specific that it may feel heavy for a dog who turns out to be more comic than epic. Compare Atlas for a similarly mythological register with slightly less narrative baggage, or explore all mythological pet names.