Rat Terrier
Underrated and underestimated — the Rat Terrier is tough, smart, and surprisingly good with families, while remaining small enough for apartment life. Bred to clear rodents from American farms, they have the tenacity of a true working terrier but without quite as much of the edge. Unusually trainable for the terrier family, and one of the few small breeds that genuinely keeps up on long hikes.

Free weekly training plan, specific to your Rat Terrier’s age. Exactly what to focus on this week.
Get your free training planLiving with a Rat Terrier
The Rat Terrier is one of those American originals that doesn’t get the credit it deserves. Developed in the early 20th century from a mix of Fox Terriers, Manchester Terriers, and possibly even Beagles or Whippets, they were bred to be working farm dogs, specifically to keep barns free of rats and other pests. Don’t let the name fool you, they’re not vermin themselves; they’re sharp, loyal, and built for action.
In real life, they’re the kind of dog that greets you like you’ve been gone for months, even if it’s only been five minutes. They’re friendly, inquisitive, and form tight bonds with their people. You’ll find them following you from room to room, poking their nose into whatever you’re doing.
They’re not yappy, but they’ll alert you when the mail comes or a squirrel makes a bad life choice in your yard, barking lands right in the middle at 3 out of 5. Energy? High.
These dogs need daily exercise, think brisk walks, play sessions, or backyard agility. A tired Rat Terrier is a well-behaved one. Skip the exercise and you’ll come home to chewed shoes or a dismantled trash can.
They thrive on mental stimulation too, so puzzle toys and training games are a must. Trainability is a solid 5 out of 5, they’re quick learners and eager to please, making them great for first-time owners who actually want to do something with their dog. Grooming is low drama.
Their short coat sheds moderately, so a weekly brush keeps it under control. No fancy baths or trimming needed. Health-wise, they’re generally robust with a long lifespan of 12 to 18 years, but watch for patellar luxation, hip dysplasia, and Legg-Calvé-Perthes disease.
Reputable breeders will screen for these, so don’t skimp on vetting them. They’re fantastic with kids and adapt well to apartments, as long as you meet their exercise needs. But if you have pet hamsters or gerbils, just don’t.
Their prey drive is real. And forget off-leash hikes in open fields, recall is tough even with training. Here’s the truth: the Rat Terrier isn’t just a pest deterrent.
They’re a thinker, a companion, a dog that wants to be part of your life in a meaningful way. Get one if you want a clever, loyal partner who’s always game. Skip them if you just want a couch potato.
14 traits, at a glance.
Every breed on PuppyBase is rated across the 14 trait dimensions the American Kennel Club publishes — from trainability to drooling level. The higher the score, the better the fit for that trait.
What to expect day-to-day
Things to screen for
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