Fanny ranks 1913 in the pet registry with 52 female animals. It was a perfectly respectable diminutive of Frances for most of English history — Fanny Burney the novelist, Fanny Kemble the actress — until the mid-20th century when the British slang meaning made it problematic for human use. On a pet, that complexity is mostly absorbed by the name's undeniable old-fashioned charm.
The Frances Lineage
Fanny as a diminutive of Frances has a literary pedigree: Fanny Burney wrote some of the best 18th-century English novels, Fanny Price is the protagonist of Mansfield Park, and Fanny Brice was a major vaudeville and radio star. The name carries a Victorian and Edwardian warmth that reads as genuinely vintage rather than merely dated. Cavalier King Charles Spaniels and dogs with a genteel temperament suit the Regency-era literary association.
The Reclamation Argument
On a pet, Fanny sidesteps the human-naming awkwardness almost entirely. Animal names can carry words and sounds that would be complicated on a child without any practical inconvenience. The name's warmth and literary depth are preserved while the social friction is minimal. Frances is the formal human counterpart in SSA records.
The Counter-Reading: Still Generates Comments
British visitors and British-culture-adjacent Americans will invariably react to the name. That's a mild but permanent feature of choosing Fanny in any English-speaking context. Most owners find it charming rather than problematic, and the literary associations are strong enough to carry the conversation. Browse vintage female pet names for comparison.