The most intelligent dog is the Border Collie followed by the German Shepherd.
Border Collies are one of the most intelligent dogs and is a very good worker and is a premier sheep herder dog which is also prized for its intelligence, extraordinary instinct, and working ability.
The other most intelligent dog breed is the German Shepherd which is a police dog that is used for sniffing out drugs, finding people, good military dog, good police dog, good guard dog and is also a great family dog as well.
The German Shepherd is a good intelligent dog but the Border Collie seems to be the most intelligent dog.
The Poodle is also a very smart dog as well as the Husky and Australian Shepherd dog.
A lot of dogs are very intelligent and most dogs can be trained to perform some tasks that you may not think they could.
You just need the right trainer to do the training of the dog.