Mopsy is one of Peter Rabbit's three sisters in Beatrix Potter's 1902 classic — alongside Flopsy and Cottontail, the obedient counterpart to Peter's mischief. As a pet name it reads as unapologetically bookish and nostalgic, chosen by owners who want the Beatrix Potter universe on a license form. It also has a physical quality: a mopsy pet is presumably round, fluffy, or shaggy.
Beatrix Potter Lineage
Mopsy, Flopsy, and Cottontail are the "good" siblings in Potter's story — they stay home and eat blackberries while Peter gets into trouble. A pet named Mopsy carries the implication of a well-behaved, home-loving animal, which is either accurate or aspirational depending on the owner's relationship with reality. Holland Lop rabbits and Bichon Frises are perfect fits.
Cottagecore Aesthetic Alignment
The Beatrix Potter names — Mopsy, Flopsy, Jemima Puddle-Duck — have found a new audience in the cottagecore aesthetic movement. Owners who decorate with botanical prints and keep herb gardens are the natural Mopsy constituency. This is a name with a clearly defined owner type.
The Counter-Reading: Very Niche
Outside Potter fans, Mopsy reads as obscure. Explaining the reference at the vet is part of the name's social cost. Browse rabbit and small-animal names at pet names.