What Is the Smallest Dog Breed? 12 Tiny Breeds Ranked by Size
What is the smallest dog breed? We rank 12 tiny breeds by weight, height, and lifestyle fit with a decision framework to help you choose the right one.
What Qualifies as the "Smallest" Dog Breed?
When people ask "what is the smallest dog breed," the answer depends on which measurement you prioritize. Weight, height at the withers, and overall body volume all tell slightly different stories. A Chihuahua might weigh less than a Yorkshire Terrier, but a Pomeranian could stand shorter at the shoulder than both.
To qualify for this ranking, each breed must meet all of the following thresholds based on the AKC breed standard:
- Maximum adult weight: 15 lb (6.8 kg) or under at the upper end of the breed standard range
- Maximum adult height: 12 inches (30 cm) at the withers or under
- Recognized breed: Must have full or miscellaneous AKC recognition (not a designer cross)
- Active breed population: Breed must be actively bred and available through responsible breeders or rescue networks in the United States
Within these parameters, I've ranked breeds from lightest to heaviest using the midpoint of each breed's standard weight range. Where two breeds share a similar weight, height becomes the tiebreaker.
Before we get to the rankings, one important note: small size does not mean low maintenance. Many of these breeds carry specific health risks, grooming demands, and behavioral needs that catch first-time owners off guard. Budget for annual veterinary care in the $800–$1,400 range for a healthy toy breed, with dental cleanings alone running $300–$700 per session under anesthesia.
The 12 Smallest Dog Breeds Ranked
The following breeds are ordered from the absolute smallest (by typical adult weight) up to the upper boundary of our 15 lb threshold. Each entry includes the data you need to compare them meaningfully.
1. Chihuahua — The Undisputed Lightest
Weight: 2–6 lb (0.9–2.7 kg) | Height: 5–8 in (13–20 cm) | Lifespan: 14–16 years
Key trait: Lowest minimum weight of any recognized breed — some adults genuinely weigh under 3 lb.
The Chihuahua claims the title of smallest dog breed by virtually every metric. Originating from the Mexican state of Chihuahua, these dogs pack outsized personality into a frame that can literally fit in a jacket pocket. They bond intensely with one person and tend to be suspicious of strangers, which makes early socialization critical. Their prominent eyes are prone to injury, and their small jaws almost guarantee dental crowding — plan for professional cleanings starting around age 2. Long-coat and smooth-coat varieties exist, with the smooth coat requiring almost no grooming beyond weekly wiping.
Ranking rationale: With a standard weight range starting at just 2 lb and topping out at 6 lb, no other recognized breed comes close to the Chihuahua's floor. The Guinness World Records for smallest dog by both length and height have consistently been held by Chihuahuas.
2. Russian Toy — The Rare Contender
Weight: 3–6.5 lb (1.4–3 kg) | Height: 8–11 in (20–28 cm) | Lifespan: 12–14 years
Key trait: Comparable weight to the Chihuahua but with a leaner, leggier build that makes them slightly more athletic.
The Russian Toy gained full AKC recognition relatively recently and remains uncommon in the U.S. Developed in Moscow as a companion and watchdog among aristocracy, they come in smooth-coat and long-coat varieties. Their temperament tends to be more outgoing than the Chihuahua's, though they still form strong single-person bonds. Their thin bone structure means they're vulnerable to fractures from jumps off furniture — ramps are a necessity, not a luxury.
Ranking rationale: The weight range overlaps heavily with the Chihuahua, but the slightly higher average weight and taller stature place them second.
3. Yorkshire Terrier — The Compact Aristocrat
Weight: 4–7 lb (1.8–3.2 kg) | Height: 7–8 in (18–20 cm) | Lifespan: 11–15 years
Key trait: Exceptionally fine-boned with a floor-sweeping silky coat that's surprisingly low-shedding (hair, not fur).
Originally bred to catch rats in English textile mills, the Yorkie is now one of the most popular toy breeds in America. Their steel-blue and tan coat requires daily brushing if kept long, or a clipped "puppy cut" every 6–8 weeks ($50–$80 per groom). Yorkies are prone to patellar luxation (slipping kneecaps), tracheal collapse, and portosystemic shunts. Many owners report success with harness-only walking to reduce tracheal pressure.
Ranking rationale: The AKC standard caps the Yorkie at 7 lb, placing the breed midpoint above both the Chihuahua and Russian Toy.
4. Toy Poodle — The Brainy Miniature
Weight: 4–6 lb (1.8–2.7 kg) | Height: 10 in or under (25 cm) | Lifespan: 12–15 years
Key trait: Highest trainability of any breed on this list — consistently ranks in the top 5 most intelligent breeds regardless of size class.
The Toy Poodle is the smallest of three Poodle varieties (Toy, Miniature, Standard). Their curly, hypoallergenic coat sheds minimally, making them a top pick for allergy sufferers, but they require professional grooming every 4–6 weeks ($60–$90 per session). Toy Poodles excel at agility, obedience, and trick training — they genuinely need mental stimulation or they develop nuisance barking. Health concerns include progressive retinal atrophy (PRA), Legg-Calvé-Perthes disease, and epilepsy. Ask any breeder for OFA or PennHIP documentation and CERF eye clearances.
Ranking rationale: Though their weight range starts as low as the Yorkie, the 10-inch height ceiling and slightly stockier build place them fourth.
5. Pomeranian — The Fluffy Dynamo
Weight: 3–7 lb (1.4–3.2 kg) | Height: 6–7 in (15–18 cm) | Lifespan: 12–16 years
Key trait: Densest double coat relative to body size on this list — gives the illusion of a much larger dog.
Descended from large Arctic spitz-type sled dogs, the Pomeranian was miniaturized through selective breeding in the Pomerania region (now part of Poland and Germany). That double coat demands brushing 3–4 times per week to prevent matting, and they blow coat seasonally with impressive amounts of undercoat shedding. Pomeranians are bold, vocal, and often don't realize how small they are — they'll challenge dogs ten times their size. Tracheal collapse is common, so harness-only walks are strongly recommended. Dental disease onset is early; daily tooth brushing is non-negotiable for this breed.
Ranking rationale: The 7 lb upper limit ties with the Yorkie, but the shorter shoulder height gives the Pom a slight edge in compactness. Ranked here because average weight tends to cluster around 5 lb.
6. Papillon — The Butterfly-Eared Athlete
Weight: 5–10 lb (2.3–4.5 kg) | Height: 8–11 in (20–28 cm) | Lifespan: 14–16 years
Key trait: Surprisingly athletic — regularly competes and wins in agility trials against dogs three times their size.
The Papillon's name means "butterfly" in French, referencing their distinctive erect, fringed ears. They're one of the oldest toy breeds, appearing in Renaissance paintings dating to the 1500s. Despite their delicate appearance, Papillons are sturdy, eager learners who thrive on structured activity. They're less prone to the tracheal and dental issues that plague other toys, though patellar luxation and open fontanels (soft spots on the skull) can occur. Single-coated with no undercoat, grooming is surprisingly manageable — a thorough brushing twice a week suffices.
Ranking rationale: The 10 lb upper limit pushes them toward the middle of our list, but their lean build means most adults cluster around 6–7 lb.
7. Maltese — The Ancient Lap Dog
Weight: 4–7 lb (1.8–3.2 kg) | Height: 7–9 in (18–23 cm) | Lifespan: 12–15 years
Key trait: One of the oldest documented companion breeds — Aristotle wrote about them, and they've been bred exclusively as companions for over 2,000 years.
The Maltese has a single-layer, silky white coat that grows continuously like human hair. This means minimal shedding but mandatory daily brushing or a short clip. Tear staining is a hallmark issue — daily eye wiping with a damp cloth and addressing underlying causes (allergies, tear duct anatomy, water mineral content) helps manage it. Maltese dogs tend to be gentle, affectionate, and less terrier-feisty than Yorkies or Poms. They're prone to liver shunts, luxating patellas, and white dog shaker syndrome (a neurological condition causing tremors).
Ranking rationale: Weight range mirrors the Yorkie, but the slightly taller average height and heavier bone structure place the Maltese at number seven.
8. Brussels Griffon — The Monkey-Faced Charmer
Weight: 8–10 lb (3.6–4.5 kg) | Height: 9–11 in (23–28 cm) | Lifespan: 12–15 years
Key trait: Distinctive almost-human facial expression with a short, upturned muzzle and prominent eyes — genuinely one-of-a-kind appearance.
Originally bred in Belgium to hunt rodents in stables, the Brussels Griffon (also called Griffon Bruxellois) has an outsized personality and a sense of humor their owners find endlessly entertaining. They come in rough-coated and smooth-coated varieties. The rough coat needs hand-stripping or clipping every 8–10 weeks. Brussels Griffons are sensitive dogs who don't respond well to harsh corrections — positive reinforcement training with high-value treats works beautifully. They're prone to syringomyelia, patellar luxation, and brachycephalic breathing issues due to their short muzzle.
Ranking rationale: Heavier than the breeds above at 8–10 lb, but well within the small-breed threshold and included for their genuinely compact overall build.
9. Affenpinscher — The "Monkey Dog"
Weight: 7–10 lb (3.2–4.5 kg) | Height: 9–11.5 in (23–29 cm) | Lifespan: 12–15 years
Key trait: Wiry, low-shedding coat with a mischievous, terrier-like confidence that's unusual in a dog this small.
The Affenpinscher's German name translates roughly to "monkey-like terrier," and that description fits both their face and their antics. An Affen won Best in Show at Westminster in 2013 (Banana Joe), which briefly boosted their visibility, but they remain a rare breed — expect waitlists of 12–18 months from responsible breeders. They're confident, curious, and surprisingly tough for their size. Grooming involves hand-stripping the wiry coat 2–3 times per year plus weekly brushing. Health concerns are relatively few compared to other toys, though patellar luxation and hip dysplasia can occur.
Ranking rationale: Weight overlaps with the Brussels Griffon, but the slightly taller standard places the Affenpinscher at nine.
10. Shih Tzu — The Imperial Companion
Weight: 9–16 lb (4–7.3 kg) | Height: 9–10.5 in (23–27 cm) | Lifespan: 10–18 years
Key trait: Lowest energy level on this list — genuinely content with short indoor walks and lap time, making them ideal for apartment living or less mobile owners.
Bred as companions for Chinese imperial families, the Shih Tzu is sturdy for a toy breed and carries itself with a distinctive arrogant carriage. Their long, flowing double coat is high-maintenance (daily brushing, monthly professional grooms at $60–$90), but most pet owners opt for a short "teddy bear" clip. As a brachycephalic breed, they're sensitive to heat and should never be exercised in temperatures above 80°F (27°C). Common health issues include intervertebral disc disease (IVDD), hip dysplasia, and various eye conditions including progressive retinal atrophy and dry eye.
Ranking rationale: The upper end of the standard (16 lb) exceeds our 15 lb cutoff, but the vast majority of Shih Tzus fall in the 9–12 lb range, and their short height keeps them compact overall.
11. Italian Greyhound — The Elegant Sprinter
Weight: 7–14 lb (3.2–6.4 kg) | Height: 13–15 in (33–38 cm) | Lifespan: 14–15 years
Key trait: Longest-legged breed on this list relative to body weight — built for speed with a deep chest and tucked waist, they can hit 25 mph in short bursts.
The Italian Greyhound (often called "IG" or "Iggie") is technically a sighthound, not a toy breed by function, though the AKC classifies them in the Toy Group. They need daily sprinting opportunities in a safely fenced area — a leash walk alone won't satisfy their prey drive and speed needs. Their thin coat and minimal body fat mean they feel cold easily; expect to invest in multiple coats and sweaters for any climate below 50°F (10°C). IGs are notoriously difficult to house-train — many owners report 6–12 months of consistent crate training before reliability. Leg fractures, particularly in puppies under 18 months, are common due to their long, slender bones.
Ranking rationale: Though they can reach 14 lb, their lean build means they appear and feel smaller than stockier breeds at the same weight. Their 15-inch height exceeds most breeds on this list, but they're included because their overall volume and footprint remain genuinely small.
12. Chinese Crested — The Hairless Conversation-Starter
Weight: 8–12 lb (3.6–5.4 kg) | Height: 11–13 in (28–33 cm) | Lifespan: 13–18 years
Key trait: The hairless variety has virtually no coat — just tufts on the head, tail, and feet — making them one of the lowest-shedding breeds in existence.
The Chinese Crested comes in two varieties: hairless (dominant gene) and powderpuff (fully coated, recessive). Both can appear in the same litter. Hairless Cresteds require sunscreen on exposed skin during outdoor time, acne treatment for skin breakouts, and sweaters in cool weather. Powderpuffs have a soft, silky coat that needs brushing 2–3 times per week. Temperament-wise, they're alert, playful, and surprisingly good with children compared to many toy breeds. Dental issues are severe in the hairless variety — many lose teeth by middle age due to a genetic tooth structure abnormality.
Ranking rationale: The 12 lb upper weight limit and 13-inch height place them at the boundary of our criteria. They make the list because their slender build and light bone structure keep their actual physical footprint very small.
Side-by-Side Breed Comparison
| Breed | Weight Range | Height | Energy Level | Grooming Needs | Top Health Risk |
|---|---|---|---|---|---|
| Chihuahua | 2–6 lb | 5–8 in | Moderate | Low | Dental disease |
| Russian Toy | 3–6.5 lb | 8–11 in | Moderate-High | Low-Moderate | Patellar luxation |
| Yorkshire Terrier | 4–7 lb | 7–8 in | Moderate | High | Tracheal collapse |
| Toy Poodle | 4–6 lb | ≤10 in | High | High | Progressive retinal atrophy |
| Pomeranian | 3–7 lb | 6–7 in | Moderate | High | Tracheal collapse |
| Papillon | 5–10 lb | 8–11 in | High | Moderate | Open fontanel |
| Maltese | 4–7 lb | 7–9 in | Low-Moderate | High | Liver shunt |
| Brussels Griffon | 8–10 lb | 9–11 in | Moderate | Moderate | Syringomyelia |
| Affenpinscher | 7–10 lb | 9–11.5 in | Moderate | Moderate | Patellar luxation |
| Shih Tzu | 9–16 lb | 9–10.5 in | Low | High | IVDD |
| Italian Greyhound | 7–14 lb | 13–15 in | High | Low | Leg fractures |
| Chinese Crested | 8–12 lb | 11–13 in | Moderate | Low (hairless) / Moderate (powderpuff) | Dental loss (hairless) |
Breeds That Almost Made the List
Several breeds came close to qualifying but fell just outside our criteria. Understanding why they're excluded helps clarify what "smallest" really means in practical terms.
Honorable Mentions
- Havanese (7–13 lb, 8.5–11.5 in): Just barely within our weight range, but many individuals exceed 13 lb. Excellent family dogs that deserve consideration if you can accept a slightly heavier dog.
- Miniature Pinscher (8–10 lb, 10–12.5 in): Height pushes past our 12-inch threshold. Far more energetic and driven than their size suggests — they need experienced owners.
- Japanese Chin (4–9 lb, 8–11 in): Would qualify by the numbers, but their relatively low population in the U.S. and limited breeder availability make them harder to source responsibly.
- English Toy Spaniel (8–14 lb, 10–11 in): Similar to the Japanese Chin — qualifies on paper but rare enough that most buyers face multi-year waitlists.
Breeds Commonly (and Incorrectly) Called "The Smallest"
- "Teacup" anything: There is no recognized breed called a "teacup Chihuahua" or "teacup Pomeranian." These terms are marketing labels used by backyard breeders and puppy mills to charge premium prices ($2,000–$10,000+) for undersized dogs with severe health problems including hypoglycemia, fragile bones, heart defects, and shortened lifespans. The ASPCA strongly advises against purchasing dogs marketed as "teacup" or "pocket" varieties.
- Pug (14–18 lb): Often perceived as small due to their compact build, but they routinely exceed our weight threshold and stand 10–13 inches tall.
- French Bulldog (16–28 lb): Despite their popularity as apartment dogs, Frenchies are substantially heavier than any breed on this list.
How to Choose: A Decision Framework
If you've narrowed your search to the smallest breeds, the real question isn't "which is smallest" — it's "which fits my life." Here's a practical framework based on the three most common owner profiles I encounter.
- Apartment dweller, work from home, low activity: You want a dog who's content with short walks and lots of lap time. → Go to Step 2A
- Active household, enjoy training and dog sports: You want a small dog who can keep up mentally and physically. → Go to Step 2B
- Allergy sufferer or minimal-shedding priority: You need a dog that won't trigger reactions or cover your furniture. → Go to Step 2C
- Best pick: Shih Tzu — lowest energy, sturdy, good with gentle children
- Runner-up: Maltese — slightly more alert but equally happy on a lap
- Budget option: Chihuahua (smooth coat) — minimal grooming costs, but requires careful handling
- Best pick: Toy Poodle — top-tier intelligence, excels in agility and obedience
- Runner-up: Papillon — comparable trainability, slightly more independent
- Unique option: Italian Greyhound — sprinting speed and sighthound instincts in a tiny package, but difficult to house-train
- Best pick: Toy Poodle — most reliable hypoallergenic option with consistent coat type
- Runner-up: Chinese Crested (hairless) — virtually no shedding, but requires skin care
- Budget option: Yorkshire Terrier — hair (not fur) coat sheds minimally, but requires regular grooming investment
Regardless of your path, factor in breed-specific health costs. A Chihuahua with severe dental disease may need $2,000–$4,000 in extractions over their lifetime. An Italian Greyhound puppy with a leg fracture faces $1,500–$3,000 per surgical repair. A Toy Poodle's grooming needs add $600–$1,000+ per year. Consult your veterinarian about breed-specific health screening before committing to a puppy or rescue dog.
Cost of Ownership: What Small Really Costs
Small dogs eat less, but their care costs don't scale down proportionally. Here's a realistic first-year budget breakdown for a typical toy breed puppy from a responsible breeder:
| Expense | Estimated Cost | Notes |
|---|---|---|
| Puppy purchase (responsible breeder) | $1,500–$4,000 | Rare breeds (Russian Toy, Affenpinscher) trend higher |
| Initial vet visits (3 puppy exams + vaccines) | $300–$600 | DHPP series, rabies, bordetella |
| Spay/neuter | $200–$500 | Varies by clinic and region |
| Food (high-quality kibble, 1 year) | $150–$300 | Toy breeds eat ~¼–½ cup/day |
| Grooming (if applicable, 1 year) | $0–$1,200 | Chihuahua: $0; Poodle: $600–$1,200 |
| Gear (crate, harness, bed, bowls, leash) | $150–$300 | Small-breed-specific sizing needed |
| Pet insurance (annual premium) | $300–$600 | Enroll early — pre-existing conditions excluded |
| First-Year Total | $2,600–$7,500 | Ongoing annual cost: $1,000–$2,500 |
Frequently Asked Questions
What is the smallest dog breed in the world?
The Chihuahua is the smallest recognized dog breed by both weight (2–6 lb) and height (5–8 inches at the shoulder). Individual Chihuahuas have held the Guinness World Record for smallest living dog multiple times. Milly, a Chihuahua from Puerto Rico, held the record for shortest dog at just 3.8 inches (9.65 cm) tall.
Are "teacup" dogs a real breed?
No. "Teacup" is not a breed classification recognized by the AKC, UKC, or any major kennel club worldwide. It's a marketing term used to describe runts or deliberately undersized dogs bred without regard for health. These dogs frequently suffer from hypoglycemia, fragile bones that fracture from minor falls, congenital heart defects, and hydrocephalus. If a breeder advertises "teacup" puppies, consider it a red flag and look elsewhere.
Do small dogs live longer than large dogs?
Yes, as a general rule. Research published in the Journal of Veterinary Internal Medicine shows that small breeds live an average of 12–16 years compared to 8–12 years for large breeds. The Chihuahua, Chinese Crested, and Papillon regularly live into their late teens. However, individual longevity depends on genetics, diet, veterinary care, and maintaining a healthy body condition score (BCS). Obesity can shorten a small dog's life by 2+ years.
Are small dogs good with children?
Some are, but most toy breeds are fragile and can be seriously injured by a child who picks them up incorrectly, drops them, or squeezes too hard. The Papillon, Havanese, and Bichon Frise tend to be the most child-tolerant among small breeds. Regardless of breed, children under 8 should always be supervised around any toy-breed dog, and kids should be taught to let the dog approach them rather than reaching to grab.
Which small dog breed is easiest to house-train?
The Papillon and Toy Poodle are generally the fastest to house-train among toy breeds, often achieving reliability within 4–8 weeks of consistent crate training. The Italian Greyhound is notoriously the most difficult — their small bladders, sensitivity to cold and rain, and independent sighthound nature can extend house-training to 6–12 months. For any toy breed, take puppies outside every 1–2 hours during the day and immediately after eating, drinking, waking, or playing.
Can small dogs go on hikes?
Yes, with caveats. Breeds like the Papillon, Toy Poodle, and Italian Greyhound can handle moderate hikes of 2–4 miles on even terrain. Avoid steep, rocky trails where small dogs risk joint injury. Always carry water — small dogs dehydrate faster due to their higher surface-area-to-volume ratio. Brachycephalic breeds (Shih Tzu, Brussels Griffon) should not hike in temperatures above 75°F (24°C) due to breathing limitations. A well-fitted backpack carrier is recommended for any hike where you might need to carry your dog out.
This article is for informational purposes only and does not replace professional veterinary advice. Always consult your veterinarian before making decisions about breed selection, health management, or diet for your dog.
Beth Carrasco
All our authors care for dogs every day — read more of their work on the authors page.
