Panthera is a genus within the family Felidae, it is one of two extant genera in the subfamily Pantherinae, and contains the largest living members of the cat family. There are 5 living species, the tiger, jaguar, lion, leopard and snow leopard and a number of extinct species.

Felidae is the family of mammals in the order Carnivora colloquially referred to as cats. A member of this family is also called a felid. The term "cat" refers both to felids in general and specifically to the domestic cat.