Starbuck carries two very different reference points: the coffee chain that's been ubiquitous since the 1990s, and the complex, morally serious first mate from Moby-Dick. The fact that the coffee chain named itself after Melville's character doesn't simplify things — Starbuck the pet name could be honoring the novel, the latte, or the happy collision of both.
The Literary vs. Corporate Question
Herman Melville's Starbuck is one of American literature's great tragic figures: the rational, humane voice aboard the Pequod who sees disaster coming and cannot stop it. That's a lot to put on a dog. The Starbucks coffee version is more accessible and probably accounts for more of the 37 registrations. Female pets named Starbuck might be carrying the corporate reference; owners with bookshelves tend to mean Melville.
The Battlestar Galactica Layer
Starbuck from Battlestar Galactica, the reimagined female Kara Thrace, added a third layer to the name's associations. A female dog named Starbuck in a household with BSG fans is specifically honoring Thrace: tough, complicated, impossible to ignore.
Breed Fit
Starbuck suits active, confident, slightly unpredictable dogs. Siberian Huskies in particular align with Thrace's untamable energy. A sharp-eyed terrier also fits.
The Counter-Reading: A Name That Invites the Coffee Joke
"Is your dog named after Starbucks?" will happen. Frequently. Prepare your preferred answer.