- 9.65 centimetre(s)
- Porto Rico (Dorado)
The smallest dog living, in terms of height, is a female Chihuahua called Milly, who measured 9.65 cm (3.8 in) tall on 21 February 2013 and is owned by Vanesa Semler of Dorado, Puerto Rico.
When Milly (or Miracle Milly as per her name on her pedigree) was born on 1 December 2011, she weighed less than one ounce (28 g), could fit in a teaspoon and had to be fed with an eyedropper. At one year old, she weighed approximately 567 g (20 oz).