Milly (dog)

Not to be confused with Millie (dog).

Miracle Milly (December 2011 – 2020) was the world's smallest dog by height, according to the Guinness Book of World Records.

Miracle Milly

Breed	Chihuahua
Sex	Female
Born	(2011-12-00)December 2011
Died	2020 (2021)
Known for	Smallest dog living (height)
Title	Smallest dog living (height)
Predecessor	Boo Boo
Owner	Vanesa Semler
Residence	Dorado, Puerto Rico
Weight	1 lb (0.45 kg)
Height	0 ft 3.8 in (9.65 cm)

She was born in December 2011, and weighed approximately 1 pound (half a kilogram).^[1] On February 21, 2013, her height was measured, placing her at 9.65 cm (3.8 in).^[1] The previous smallest dog was Boo Boo, at 4 inches (10.16 centimeters) tall.^[1][2] Miracle Milly was owned by Vanesa Semler from Dorado, Puerto Rico.^[1]

The pet cloning company Sooam announced that they have produced 49 clones of Milly.^[3] The owners sued Sooam for breach of contract in 2019.^[4]

Milly died in 2020; the owners sued the vet for "substandard care" in July 2020.^[5]

Born to one of Milly's clones, Semler's chihuahua Pearl was named the world's shortest dog by the Guinness Book of World Records in 2023.^[6]