Small breedterrier group

Rat Terrier

Rat Terriers are bright, busy little dogs with huge personalities packed into a compact frame. They form deep bonds with their families and often shadow their favorite humans from room to room, eager to be part of whatever is happening. With kids, they're typically playful and patient companions, especially when raised alongside them, though their terrier spunk means they thrive on engagement rather than being left to entertain themselves.

Rat Terrier — Breed Header
Temperament
affectionate · energetic · intelligent · alert · playful · loyal
Size
Typically 10–25 lbs and 10–18 inches at the shoulder, with both miniature and standard varieties.
Best for
families, active owners, first time owners
Energy level
high
Shedding
Yes
Grooming
Low
Training
Easy
Lifespan
12–18 years

Behavior & traits

  • devoted to family
  • great with kids
  • spirited
  • curious
  • watchful

Health concerns

Rat Terriers are generally a hardy, long-lived breed with fewer genetic issues than many purebreds. Families should still watch for patellar luxation, hip dysplasia, allergies, and dental concerns, which are common in smaller dogs. Routine vet checkups and good dental care go a long way toward keeping them healthy into their teens.

Responsible breeding and regular check-ups go a long way. Always ask breeders about health testing.

Feeding & nutrition

A high-quality small-breed kibble or balanced fresh food works well, typically split into two measured meals a day to prevent begging and weight gain. Because they're active and food-motivated, portion control matters — Rat Terriers can pack on pounds quickly if treats aren't counted. Always keep fresh water available, especially after play sessions in the yard.

Exercise needs

Don't let the size fool you — Rat Terriers need about 45–60 minutes of activity daily, mixing brisk walks, backyard play, and mental challenges. Families can easily meet these needs through fetch games, tug, agility play, or letting them tag along on bike rides and hikes. A tired Rat Terrier is a well-behaved Rat Terrier, so consistent daily activity is key.

Living with a Rat Terrier

Living with a Rat Terrier means having a small, devoted shadow who's always ready for the next adventure — whether that's a hike, a couch cuddle, or supervising you while you cook dinner. They're surprisingly versatile, switching from zoomies around the living room to napping in a sunny spot within minutes. Families are often charmed by their expressive faces, clever problem-solving (sometimes too clever — they can figure out latches and trash cans), and their watchdog tendencies, as they'll alert you to every delivery driver. They do best when included in family life rather than left alone for long stretches, and they tend to pick a favorite person while still loving everyone in the household. Expect a dog who's playful with the kids, curious about every squirrel, and unexpectedly snuggly under the blankets at bedtime.

Recommended products

A well-fitted Y-shaped harness is essential, since Rat Terriers are quick, agile, and prone to lunging after small critters on walks. Invest in puzzle toys, snuffle mats, and durable squeaky toys to keep their sharp minds engaged, plus a sturdy flirt pole for backyard chase games that satisfy their prey drive. A cozy covered bed or blanket is a must — they love to burrow — and a slicker brush or grooming mitt handles their short coat shedding with minimal fuss.