Flock Guards & Mastiffs Dog Breeds Group
Flock Guards & Mastiffs: Powerful Protectors with Ancient Instincts
The UKC Flock Guards & Mastiffs group includes dog breeds historically bred to protect livestock, property, and people. These dogs are known for their imposing size, calm confidence, and unwavering loyalty. Flock guards like the Great Pyrenees and Anatolian Shepherd excel at independent decision-making and territorial defense, while mastiff-type breeds such as the Bullmastiff and Neapolitan Mastiff combine muscular strength with a gentle, watchful nature. Though often reserved with strangers, they are deeply bonded to their families and thrive in roles that require vigilance and courage. Ideal for experienced owners, these breeds offer unmatched protection and companionship when properly trained and socialized.
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Aidi
A.K.A.: Atlas Mountain Dog, Atlas Shepherd Dog, Chien de l'Atlas, Chien de Montagne de l'Atlas
Size
Grooming requirements
Exercise requirements
Good with other dogs
Watchdog ability
Energetic
Weight (lbs): | 50-60 |
Height (in): | 20-24 |
Colors: | white, fawn, red, black and white, fawn and white, shades of gray, tri-color, tawny. |
Carpathian Sheepdog
Size
Grooming requirements
Exercise requirements
Good with other dogs
Watchdog ability
Energetic
Weight (lbs): | 70-100 |
Height (in): | 23-29 |
Colors: | wolf like colors in gray or sandy tones, can be with white spots. |
Castro Laboreiro Livestock Guarding Dog

Size
Grooming requirements
Exercise requirements
Good with other dogs
Watchdog ability
Energetic
Weight (lbs): | 50-75 |
Height (in): | 20-24 |
Colors: | mahogany, chestnut and black |
Caucasian Shepherd Dog

Size
Grooming requirements
Exercise requirements
Good with other dogs
Watchdog ability
Energetic
Weight (lbs): | 99-154 |
Height (in): | 25-28 |
Colors: | tan, gray, fawn, white and brindle |
Central Asian shepherd

Primary Breed | Anatolian Shepherd |
Secondary Breed | Central Asian Shepherd Dog |
Size
Grooming requirements
Exercise requirements
Good with other dogs
Watchdog ability
Energetic
Weight (lbs): | 140 to 150 |
Height (in): | 4 ft to top head |
Colors: | white/tan |
Central Asian Shepherd Dog

Size
Grooming requirements
Exercise requirements
Good with other dogs
Watchdog ability
Energetic
Weight (lbs): | 88-176 |
Height (in): | 24-34 |
Colors: | combinations of white, tan, brown or black |
Greek Sheepdog
Weight (lbs): | Males 84-110 Females 70-92 |
Height (in): | Males 25-29 Females 23-26 |
Colors: | Coat colors include black, grayish-brown and white. |
Overview:
The Greek Sheepdog is a medium to large size dog, with solid body and great physical strength that is capable of escorting the flock and fight with the enemy maintaining the physical superiority.
See more…Kangal Dog
Size
Grooming requirements
Exercise requirements
Good with other dogs
Watchdog ability
Energetic
Weight (lbs): | 90-145 |
Height (in): | 28-32 |
Colors: | light brown or gray with a black mask |
Karakachan
Size
Grooming requirements
Exercise requirements
Good with other dogs
Watchdog ability
Energetic
Weight (lbs): | 88-110 |
Height (in): | 27-29 |
Colors: | The coloration is mainly spotted (big contrast spots on white base or white spots on dark base). |
Karst Shepherd
Size
Grooming requirements
Exercise requirements
Good with other dogs
Watchdog ability
Energetic
Weight (lbs): | 58-88 |
Height (in): | 21-25 |
Colors: | varying shades of iron and silver gray |