American Kennel Club (AKC)
Pyrenean Shepherd (Long-haired)

The Pyrenean Shepherd (Long-haired) is a herding breed with a long coat, high energy, and a loyal but reserved temperament.
Pyrenean Shepherd (Smooth-faced)

The Pyrenean Shepherd (Smooth-faced) is a herding dog known for its intelligence, loyalty, and high energy levels.
Rafeiro do Alentejo

A large, calm, and protective Portuguese livestock guarding breed.
Rat Terrier

The Rat Terrier is an intelligent and energetic breed developed in the United States as a farm dog, known for their vermin hunting abilities.
Redbone Coonhound

The Redbone Coonhound is a solid red, medium to large-sized American hunting dog breed.
Rhodesian Ridgeback

The Rhodesian Ridgeback is a dignified and protective breed known for its distinctive ridge and versatile working abilities.
Romanian Carpathian Shepherd

This breed is a loyal and protective livestock guardian that requires consistent training and daily exercise.
Romanian Mioritic Shepherd Dog

The Romanian Mioritic Shepherd Dog is a large breed from the Carpathian Mountains used for guarding and herding livestock.
Rottweiler

The Rottweiler is a powerful, loyal, and protective breed that requires consistent training and socialization.
Russell Terrier

The Russell Terrier is a small and active dog breed with origins in fox hunting.