Hattie appears 83 times in the pet registry at rank 1315, almost entirely on female dogs. It's a vintage-sweet name sitting in the same aesthetic family as Nellie, Millie, and Bessie — names that feel like they belong to a grandmother who made excellent pie.
The Grandma-Chic Pet Aesthetic
Hattie is a traditional English nickname for Harriet, which itself has Germanic roots meaning home ruler. On a pet it lands as warm, approachable, and specifically retro without being ostentatiously vintage. Hazel and Pearl occupy the same shelf. Breed-wise, Hattie works particularly well on Basset Hounds, older-style cocker spaniels, and any dog that carries a bit of gravitas.
Human-Pet Crossover
Hattie is making a quiet comeback on the human side too — it's a legitimate standalone name now rather than just a Harriet nickname. The human profile is at /names/hattie. This crossover appeal is part of what makes the name feel intentional rather than arbitrary on a dog: it reads as a real name, not a pet-specific whimsy.
The Counter-Reading
Hattie's sweetness is real, but it skews strongly domestic-cozy. If your dog is high-energy or physically imposing, the name can create an ironic gap that some owners find charming and others find annoying. It's best suited to dogs with an actually calm or endearing temperament.