The Rottweiler is a medium to large size breed of domestic dog. The dogs were known as "Rottweil butchers' dogs" (German: Rottweiler Metzgerhund) because they were used to herd livestock and pull carts laden with butchered meat and other products to market. Some records indicate that earlier Rottweilers may have also been used for hunting, although the modern Rottweiler has a relatively low hunting instinct.
The Rottweiler was employed in its traditional roles until the mid-19th century when railways replaced droving for getting livestock to market. While still used in herding, Rottweilers are now also used as search and rescue dogs, as guide dogs for the blind, as guard dogs or police dogs, and in other roles.