Biggest Dog Breeds Growing Over 100 Pounds

Great Dane

Towering Great Danes are gentle giants reaching 200 lbs. They need space to stretch out.


Massive Mastiffs can weigh 220 lbs. Despite their size, they are calm, loyal companions.

St. Bernard

Sweet, patient St. Bernards commonly reach 150-180 lbs. They drool and shed year-round.


Intelligent, hardworking Newfoundlands grow 150-200 lbs. They adore the water.

Irish Wolfhound

Lean, muscular Irish Wolfhounds stand over 30 inches tall and weigh up to 180 lbs.

Scottish Deerhound

Similar to Irish Wolfhounds, Scottish Deerhounds weigh 90-110 lbs. They need lots of exercise.


Stocky, strong Rottweilers typically reach 100-130 lbs. Obedience training is a must.

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