Weighing under 6 pounds, the pint-sized Chihuahua is the smallest dog breed.
Yorkshire Terriers average a petite 7 pounds and stand just 8-9 inches tall.
With an average weight of 5-10 pounds, Papillons are dainty toy dogs.
Pomeranians measure up to just 7 inches tall and weigh 3-7 pounds.
Compact pugs typically weigh 14-18 pounds and stand 10-12 inches in height.
Shih Tzus are small dogs, growing to 9-10 inches tall and weighing 9-16 pounds.
The Havanese is a lively toy breed reaching up to 11.5 inches tall and weighing 7-13 pounds.