Bennett appears 64 times at rank 1603 on male pets. The name is having a genuine moment in American baby naming, top-100 and climbing, which means it's also making its way into pet registries through owners who love the name and apply it to an animal as naturally as they would to a child.
The Baby Name Spillover
Bennett is a medieval surname form of Benedict that has crossed into given-name use with a preppy, WASP-adjacent appeal. It shares the register of Graham, Beckett, and Holden: names that feel literary, slightly formal, and generationally aspirational. On pets, it signals an owner who treats the animal as a full household member deserving a proper name. The human parallel lives at /names/bennett.
Breed and Owner Fit
Bennett fits the owner who reads literary fiction, has opinions about coffee, and chose their dog's breed deliberately rather than impulsively. Bernese Mountain Dogs and Weimaraners carry the preppy-literary register well: dogs with strong visual presence and calm, intelligent temperaments.
The Counter-Reading
Bennett is rising fast enough in baby naming that the pet version may feel borrowed from a nephew or friend's son rather than chosen independently. Most owners find this complimentary rather than awkward. The name is genuinely good in either context.