Classifications
Rabbits and hares were formerly classified in the order Rodentia (rodent) until 1912, when they were moved into a new order Lagomorpha. This order also includes pikas.

Order Lagomorpha

Family Leporidae
.Genus Pentalagus
Amami Rabbit/Ryūkyū Rabbit,
.Genus Bunolagus
Bushman Rabbit,
.Genus Nesolagus
Sumatran Striped Rabbit,
Annamite Striped Rabbit,
.Genus Romerolagus
Volcano Rabbit,
.Genus Brachylagus
Pygmy Rabbit,
.Genus Sylvilagus
Forest Rabbit,
Dice's Cottontail,
Brush Rabbit,
San Jose Brush Rabbit,
Swamp Rabbit,
Marsh Rabbit,
Eastern Cottontail,
New England Cottontail,
Mountain Cottontail,
Desert Cottontail,
Omilteme Cottontail,
Mexican Cottontail,
Tres Marias Rabbit,
.Genus Oryctolagus
European Rabbit,
.Genus Poelagus
Central African Rabbit,
.Three other genera in family, regarded as hares, not rabbits

Naming
Rabbits are often known affectionately by the pet name bunny or bunny rabbit, especially when referring to young, domesticated rabbits. Originally, the word for an adult rabbit was coney or cony, while rabbit referred only to the young animals. The word rabbit, however, mostly replaced the older word during the 19th century after coney became a vulgarism by analogy to the word cunt due to their similar pronunciation. When coney was used to refer to rabbits, its pronunciation was changed to (rhymes with "phoney"), instead of the original (rhymes with "money") because of this. More recently, the term kit has been used to refer to a young rabbit. A group of young rabbits is referred to as a kindle. Young hares are called leverets, and this term is sometimes informally applied to any young rabbit. Male rabbits are called bucks and females does. A group of rabbits or hares is often called a fluffle in parts of Northern Canada.