Lacy is a name built on texture. The word conjures delicate, intricate fabric, and that visual association carries into pet naming for owners who want something soft and feminine without landing on one of the more common floral picks. At rank 1281 in the registry, it skews strongly female and shows up most often on smaller, lighter dogs.
Texture Naming in the Pet World
Names drawn from fabric and material culture (Velvet, Satin, Lace, Lacy) occupy a specific niche in pet naming that's distinct from food names or flower names. They suggest refinement without the formality of a historical name. Lacy works particularly well on Maltese and Bichon Frises — white, fluffy breeds whose physical appearance genuinely suggests the delicate visual of lace fabric. The name and the dog reinforce each other.
Spelling Variants
Lacy and Lacey are both in circulation, with Lacey being the more common human-name spelling and Lacy reading as more of a standalone word-as-name. Neither is more correct. Owners who want the word-over-name connotation usually go with Lacy; owners who want the established personal-name feel tend toward Lacey. The human name page at /names/lacy covers both variants.
Durability Over Time
Lacy doesn't belong to a specific trend era; it's been in steady, quiet use for decades. That means it won't date badly as the pet ages. Compare Lacey or Lily for similar register. A solid, unfussy choice for a small female dog.