Percy ranks at #400 with 310 entries, leaning male. The name belongs to the formal-vintage masculine cohort that has become a millennial pet-naming favorite — diminutive of Percival, with a soft tone that makes the dignified register feel warmly approachable rather than stuffy.
The vintage-revival register
Percy clusters with Henry, Oliver, Arthur, and Winston in the formal-vintage masculine pet-naming cohort. Owners picking these names lean into the pet-as-tiny-gentleman framing, where the formality is intentional and slightly comic. The Percy baby name page shows the SSA chart climbing again through the 2010s after a long mid-century decline.
The Percy Jackson layer
Percy Jackson (Rick Riordan's book series, launched 2005, with the films and the 2023 Disney+ adaptation) gave the name a major contemporary lift among younger millennials and Gen Z. The character — a half-blood demigod son of Poseidon — provides a confident, scrappy register that complements the older Percival-and-Percy formal lineage. Some pet owners arrive through this route specifically.
Sound and breed fit
The two-syllable shape (PUR-see) has a soft front consonant and a singing trailing vowel, projection-friendly across distance. Percy lands disproportionately on small-to-medium dogs with friendly temperaments — Cavaliers, Frenchies, Cocker Spaniels, mixed breeds, and Corgis (where the small-dignified pairing reads especially well visually). The name suits a pet whose presence is sweet rather than imposing.