A giant dog breed weighs over 100 lb (44 kg) or more as an adult.
Some breeds go even higher in weight and mass.
I love these “Gentle Giants” because they are calm with children.
#1 Kuvasz
The Kuvasz is one of Hungary’s oldest livestock guardian dog breeds, averaging 70 to 115 pounds and 26 to 30 inches in height.
Males are larger than females.
They have a gentle demeanor with their families.
#2 Great Dane
It is an extremely large domestic dog of mastiff-sighthound type that can weigh between 140 and 175 pounds.
They can easily stand up to 32 inches tall when they’re fully grown. I love these gentle giants since they just chill with you, but also love to play.
#3 Boerboel
The Boerboel is a South African breed of large dog that weighs 150 to 200 pounds. Males are from 24 to 27 inches tall at the shoulder.
#4 Newfoundland
Newfoundlands top the chart as the 5th largest in the world, weighing as much as 150 pounds and standing at between 27 and 30 inches.
They are also known for their calm and docile nature.
#5 Romanian Mioritic Shepherd
Romanian Mioritic Shepherds were developed to guard the flock of sheep in the mountains from bears and wolves. They are strong and have a calm nature, especially children.
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#6 Saint Bernard
Saint Bernards are another classic example of a gentle giant. They are renowned for their calm temperament. Saint Bernards also weigh like a giant, up to 82 kg.
#7 Anatolian Shepherd
The Anatolian Shepherd has a reassuring aura and is a devoted protector of its pack.
Kangals can weigh as much as 150 pounds and originated from the Central Anatolia Region in central Turkey.
#8 Irish Wolfhound
The Irish Wolfhound is an immense, muscular hound that is affectionate with most people.
The breed is considered a gentle giant and is a great companion in the right household.
Oh, and the Irish Wolfhound is the tallest dog breed.
#9 Great Pyrenees
The Great Pyrenees is an immensely powerful working dog bred with males weighing over 100 lbs.
The breed originates from the eastern or French side of the Pyrenees Mountains and has a bite force of around 200 to 240 PSI.
#10 Neapolitan Mastiff
The Neapolitan Mastiff is an Italian breed that can weigh over 150 lbs.
They were originally trained as guard dogs nd very willing to please their owners.
I like that they are devoted dogs that love family life.
#11 Bernese Mountain Dog
Berners got their name from their city of origin, Bern in Switzerland. An adult Bernese Mountain Dog will weigh between 80 and 115 pounds.
#12 Greater Swiss Mountain Dog
It dog breed that was developed in the Swiss Alps used for herding cattle and as a guard dog.
The Greater Swiss Mountain Dog is another gentle giant, with females ranging between 80 and 110 lb, while males range between 90 and 140 lb.
#13 Leonberger
The Leonberger is a lush-coated giant with German origins. They are extremely affectionate dogs that are friendly and extra patient with children.
Leonbergers have webbed feet and a lion-like appearance. They are large dogs weighing anywhere from 90 to 150 pounds.
#14 Romanian Raven Shepherd
Raven is a livestock guardian dog from Romania with a well-developed guardian instinct.
With many males crossing over 80 kg in weight, the Romanian Raven Shepherd is truly a giant with which I personally have plenty of contact.
The Raven is a giant, but a calm one. A great family dog.
#15 Bullmastiff
The Bullmastiff is a loyal guardian who makes an impression on everyone they meet.
They have a natural instinct to ‘protect’ their family. Bullmastiffs also have a calm and gentle temperament. They live for about 7.5 years on average.
Adult female Bullmastiffs generally weigh between 45 and 54 kg, while males weigh between 50 and 59 kg.
#16 Pyrenean Mastiff
The Pyrenean Mastiff is a rare giant dog and eager partner in family activities.
It is docile at home and is protective of kids. The breed originates from the Pyrenees Mountains in Spain. Males weigh from 63 to 90 kg. Giants!
#17 English Mastiff
English Mastiffs are patient and lovable companions, and they are not very active.
A full-grown male weighs between 160 and 230 pounds, with the exception of Zorba, an English Mastiff, who in November 1989 was recorded as weighing 343 pounds.
#18 Alaskan Malamute
The breed takes its name from a tribe of nomadic Inuits.
They typically grow to between 34 and 39 kg. In 2025, the BBC presented a five Malamute named Mal weighing in at 13 stone (82 kg).
“He’s a gentle giant,” the owner said. “It’s Mal’s world, and we’re all just living in it.“
#19 Tibetan Mastiff
The Tibetan Mastiff is one of the biggest dog breeds with a quiet and thoughtful personality.
These massive animals can weigh well over 100 pounds and stand over three feet high.
In 2011, an 11-month-old 180-pound Tibetan Mastiff was sold for a cool $1.5 million.
#20 Old English Sheepdog
The breed comes from the pastoral type dogs of England and are popular family companion. Old English Sheepdogs are gentle giants, but still has herding tendency.
#21 Dogue de Bordeaux
Dogue de Bordeauxs are eager to please and bond closely with their people. Their weight can be between 54 and 65 kg.