Snoopy ranks #127 with 865 entries, and the name is a single-source pet pick. Charles Schulz introduced Snoopy in the Peanuts comic strip in 1950, and the character has been continuously in American culture since. Owners who pick Snoopy are picking the beagle, full stop. The name has no parallel cultural anchor of meaningful size.
The breed-fit problem
Snoopy is a beagle in the comics, and a non-trivial fraction of pet Snoopys are also beagles. The breed-name match is one of the strongest in our data — owners who get a beagle and want to name it after a famous beagle land on Snoopy directly. Beagle entries in our dataset show Snoopy at rates well above the breed-flat baseline.
The name does also appear on non-beagle dogs, particularly small white-and-black mixed breeds where the visual reference partially carries. Daschunds and the smaller hound breeds occasionally pick up the name, and the broader cartoon-character cluster is browsable at pet-names. But the beagle concentration is the dominant story, and the name reads as a deliberate breed-and-character choice in those cases.
Sound and recall
Two syllables, stress on the front (SNOO-pee), with a soft Sn opener and a vowel-trailing tail. Recall performance is moderate. The Sn cluster has some structural integrity but reads softer than hard-consonant openers, and the tail trails. The name carries fine for typical pet use, less well for high-stakes off-leash recall.
The cultural commitment
Picking Snoopy is a stronger cultural commitment than most pet names require. Every person who meets the dog will know the reference, every vet tech will smile, and the dog will be effectively cosplaying as a comic strip character for its whole life. Owners who pick the name are signing up for that, and most do it deliberately rather than by accident.
One counter-reading
The name can read as childish to some adults, particularly without the beagle visual to ground it. A Snoopy that is a Rottweiler or a Husky reads as ironic, and the irony does not always land for everyone. The human name page shows the name barely registers on SSA charts — Snoopy is essentially a pet-only pick, and that purity is the source of both its charm and its limitations.