The Český Fousek is a Czech breed of versatile hunting dog that was traditionally and currently used to hunt, point, and retrieve. The name is in Czech, in which český means Czech and fousek is derived from vousy or vousky (whiskers). While the name is used for both sexes, Český Fousek specifically refers to a male dog while the female is traditionally called Česká Fouska. The breed is part of the griffon hunting dog family and have the beard and moustache common to wirehairs. There is a large difference in size between the females and males of this breed, with the weight difference being up to 11 kilograms (24 lb).

Gun dogs or bird dogs are types of hunting dogs developed to assist hunters in finding and retrieving game, typically various fowls that are shot down on the flight. The term hunting dog is broad and includes all breeds and skills of hunting canines, but "gun dogs" refers to canines that are trained to work alongside a loud firearm while hunting or retrieving game. Gun dogs are divided into three main categories: pointers and retrievers, setters and spaniels, and water dogs.