
Some of the world's tiniest dog breeds play an outsized role in our lives. With their expressive faces and charming antics — not to mention the vast wardrobe options — it's difficult for many to imagine life without a pint-sized dog.
Tiny dogs typically live 12 to 14 years, outlasting many larger breeds. Generally, small dogs require less food, which can make them more affordable (though grooming costs may offset any meal savings). It's worth noting, however, that adopting a small dog isn't just about cost. For many, the joy and affection that small dogs provide, whether through fetching toys or curling up on a cozy lap, are what truly matter most.
What are the world's smallest dog breeds? While many exist, here are seven of the most popular, including one that gained official recognition in 2022.
Russian Toy

In 2022, the American Kennel Club (AKC) officially recognized the Russian Toy as a distinct breed. These small dogs, available in both short- and long-haired varieties, are known for their large, upright ears adorned with silky fur. Resembling tiny ponytails, their ears highlight their round eyes and petite ebony noses. Russian Toy dogs reach up to 11 inches (28 cm) in height and weigh no more than 6.5 pounds (3 kg), yet they boast remarkable intelligence and are easy to train. These newly recognized pups make excellent family pets, equally happy chasing toys outdoors or curling up on a lap. Their coats come in stunning shades, from fox-like red sable and brown to classic black and tan.
Maltese

The Maltese, weighing up to 7 pounds (3.17 kg) and standing no taller than 9 inches (23 cm), are known for their beautiful, silky white fur. Their striking white coats give them a regal appearance, while their dark eyes and little black noses add to their appeal. It’s no surprise that Roman Empire aristocrats bred them as a symbol of status and a fashionable companion. While their coats remain luxuriously white, some Maltese may sport coats in white with lemon or tan. Despite their delicate look, Maltese are resilient, excellent watchdogs, and skilled athletes, often seen on agility courses. Those sensitive to noise may not appreciate their tendency to bark, but this very trait makes them excellent guard dogs.
Chihuahua

The Chihuahua holds the title of the world’s smallest dog breed, weighing up to 6 pounds (2.7 kg). These dogs average 9 inches (23 cm) in height. Their delicate bone structure makes them unsuitable for rough handling, so they’re not ideal pets for children. Chihuahuas come in short or long coats, with characteristic perky ears and large, expressive eyes. These feisty, devoted dogs are full of personality and enjoy socializing with fellow Chihuahuas. Their coat colors range from solid black, white, red, and tan, to a mix of two hues. While the breed is widely believed to have originated in the region of Chihuahua, Mexico, some alternative origin theories suggest they may have been brought over by Spanish conquistadors from Malta or first seen in China.
Pomeranian

Named after their origin in northeastern Europe, Pomeranians hail from what is now Poland and western Germany. Popularized by England’s Queen Victoria (1819-1901), these tiny yet alert companions have found homes worldwide. Descended from larger spitz breeds bred for snowy conditions, like the Akita, Alaskan Malamute, and Samoyed, Poms have a foxlike face and a tail curled high in curiosity. Standing up to 11 inches (28 cm) and weighing 3 to 7 pounds (2.7 to 3.17 kg), they sport thick, fluffy coats in black, white, red, orange, brindle, or various combinations.
Shih Tzu

The Shih Tzu, a breed originally created to sit in the laps of Chinese emperors, has become one of the most beloved toy breeds worldwide. The name "Shih Tzu" translates to "lion dog," and these regal dogs were initially kept behind palace walls for centuries. It wasn’t until the 1930s that breeders in both China and England began to cultivate smaller populations of this affectionate and outgoing breed. Reaching up to 16 pounds (7 kg) and standing 11 inches tall (28 cm), Shih Tzus with their luxurious coats, expressive eyes, and spirited personalities continue to be favorites in pet-loving homes.
Yorkshire Terrier

Standing just 8 inches tall (20 cm), Yorkshire terriers may be tiny, but they possess an incredibly brave heart—like the one who stood up to a coyote to protect his young owner. Weighing around 7 pounds (3.17 kg), Yorkies are playful, loving, and always up for cuddles. Originally bred in England to hunt rodents, these adorable little dogs have since become cherished family pets. Due to their sensitivity to cold, you’ll often see them sporting cute sweaters or coats.
Japanese Chin

If you're looking for a loyal, affectionate, and even-tempered companion, the Japanese Chin might just be the perfect fit. Add intelligence and a friendly disposition, and you've got a dog that truly earns the title of a lifelong companion. This small breed weighs between 4 and 9 pounds (1.8 to 4 kg) and typically stands around 11 inches (28 cm) tall. Its smooth, shiny coat can come in various combinations, such as black-and-white, lemon-and-white, sable-and-white, or a tri-color mix of black, tan, and white. With a history believed to trace back over 1,000 years to China or Korea, the Japanese Chin was officially recognized by the AKC in 1888. Known for its cat-like grace, floppy ears, and flat face, this breed loves nothing more than curling up in a warm lap, soaking up affection.
As recorded by Guinness World Records, the smallest dog in the world is a Chihuahua named Miracle Milly, who weighs just 1 pound (0.45 kilograms).