Gabriella is the Italian and Spanish feminine form of Gabriel, from the Hebrew meaning "God is my strength." On a female dog, it's a fully human name used without modification: the kind of long, formal name an owner uses on the registration form but probably shortens to Gabby or Ella in daily life.
The Long-Form Human Name on Pets
Gabriella at five syllables is one of the longer names in regular pet use. It functions as the formal name on vet paperwork while the pet responds to a shorter form. Owners give their dogs the full human name, then use a nickname functionally.
Human-Pet Crossover
The human name Gabriella was consistently top-200 in the US through most of the 2000s and 2010s before declining. Some owners transferred the name to a pet when it felt too commonplace for a child. Gabriella on a dog is often a name someone loved but ultimately passed over for their kids.
The Counter-Reading: Formality Mismatch
There's a slight register mismatch between Gabriella's formal sound and the reality of daily dog ownership. The name resolves cleanly through Gabby or Ella, both of which work as pet names in their own right, making Gabriella more of a ceremonial choice than a functional one.