Border Collie: Widely regarded as the smartest dog breed, known for their exceptional problem-solving abilities and work ethic.
Poodle: Highly intelligent and versatile, excelling in obedience and various dog sports.
German Shepherd: Known for their intelligence, trainability, and versatility in roles such as police, military, and service work.
Golden Retriever: Intelligent and eager to please, making them excellent in obedience training and as service dogs.
Doberman Pinscher: Highly trainable and intelligent, often used in police and military roles.
Shetland Sheepdog: Known for their intelligence and agility, excelling in obedience and herding.
Australian Cattle Dog: Known for their intelligence and strong work ethic, excelling in herding and agility.
Belgian Tervuren: Highly intelligent and energetic, excelling in obedience and various dog sports.