The World Record of ‘smallest rabbit’ has been achieved by the Pygmy Rabbit (Brachylagus idahoensis) from North America.

The Pygmy rabbit (Brachylagus idahoensis) adult average weights from 375 to 500 grams (0.827 to about 1.102 lb) and a body length from 23.5 to 29.5 centimetres (9.3 to 11.6 in) generally male are somewhat smaller than females.