The smartest dog breed is often considered to be the border collie. These dogs are prized for their high intelligence and instincts and are used to herd sheep and other animals.
Poodles are the second smartest dog breed. They were originally bred to retrieve things from water. Another very intelligent dog breed is the German Shepard. This breed was also bred to herd animals but is also very loving and protective of its family. Golden retrievers are intelligent, and their eagerness to please their owners makes them very popular. Finally, Papillions are some of the most intelligent but smallest dogs. They are happy and alert but never shy or aggressive.