Rebecca is a fully human given name — a Hebrew name meaning "to tie" or "to bind," borne by one of the Bible's matriarchs and by the title character of Daphne du Maurier's iconic 1938 gothic novel — that appears in pet registries at this rank tier almost certainly as a registry artifact or an owner who applies human names to pets without distinction.
The Human Name in Pet Registries
Fully formal human names like Rebecca, Katherine, and Elizabeth appear in pet registries when owners either treat their pets as family members with full given names, or when a registry entry was made for a human family member and attributed to the pet by clerical error. At 29 records, Rebecca in the pet registry is most plausibly the former. Owners who believe their dog or cat deserves a complete human name. Rebecca ranks consistently in SSA data across decades.
Rebecca as a Pet Name Aesthetic
The three-syllable formality of REB-ecca actually works well for a dignified female cat or a large, composed dog. Becca or Bex as daily call forms give the name practical flexibility. Standard poodles, formal, intelligent, and underestimated, suit a name this human in register.
The Counter-Reading: It's a Person's Name
Rebecca on a pet will prompt "is that really her name?" from anyone who meets her — which is either the point or the friction. Browse human-name pet options at pet names.