Rat Terrier breeds

# Breed AKC group Size Weight Lifespan
84 Rat TerrierA trim, athletic American farm terrier that comes in miniature and standard sizes, with a short coat, a quick mind, and a lot of energy. Terrier Group Small 10 to 25 lb 14 to 18 years

Ranked by the American Kennel Club's 2025 registration popularity. The three breeds it recognized in January 2026 follow. Weights are typical adult ranges; sizes are this site's classes: small under 25 lb, medium 25 to 60 lb, large over 60 lb.