Giant Schnauzer in profile, photographed outdoors

Giant Schnauzer

  • Large
  • Working Group
  • Popularity rank 52

The Giant Schnauzer is the largest of the three Schnauzer breeds, a muscular German working dog bred to guard farm and home. Alert, loyal, and easily trained, this big dog is devoted to its family and wary of strangers.

Height
23.5 to 27.5
inches at the shoulder
Weight
55 to 95
pounds, adult
Males 75 to 95, females 55 to 80 lb
Life expectancy
10 to 13
years, median 11.5
Senior from
8.6
years, about

Senior starts in the last quarter of a breed's expected lifespan, following the 2019 AAHA canine life stage guidelines. Individual dogs vary.

About the breed

Temperament
Alert, loyal, trainable
Coat
Double, Wiry, medium
Origin
Germany
Recognized
1930
Popularity, 2015 to 2025 Rank 52 in the latest ranking

2015: rank 81, 2016: rank 79, 2017: rank 80, 2018: rank 78, 2019: rank 72, 2020: rank 67, 2021: rank 65, 2022: rank 58, 2023: rank 56, 2024: rank 57, 2025: rank 52

2015 Lower is more popular 2025

A well-bred Giant Schnauzer looks much like the Standard Schnauzer, only bigger. It is the largest of the three Schnauzer breeds, alongside the Standard and the Miniature, with a muscular, substantial body that fanciers have called a bold and valiant figure of a dog.

Giants are imposing. They stand 23.5 to 27.5 inches at the shoulder and weigh from 55 to 95 pounds, with males running larger than females. The double coat is harsh and wiry, either solid black or pepper and salt, and the breed wears a beard and eyebrows that sharpen a keen, alert expression.

The breed was developed in Germany, recognized in 1930, by crossing Standard Schnauzers with Great Danes to work as farm and home guardians. Today these brave, loyal dogs have mostly traded farm life for work as police and military dogs.

Giant Schnauzers are intelligent, eager to please, and easily trained. Bred to guard, they can be a little suspicious of new people, yet they are sweet and gentle with their family.

Temperament and needs

Scored 1 to 5 for the breed overall. Individual dogs vary.

  • Affectionate with family4 out of 5
  • Good with young children3 out of 5
  • Good with other dogs3 out of 5
  • Openness to strangers2 out of 5
  • Playfulness5 out of 5
  • Watchdog and protective nature5 out of 5
  • Adaptability4 out of 5
  • Trainability3 out of 5
  • Energy level5 out of 5
  • Mental stimulation needs5 out of 5
  • Barking level3 out of 5
  • Shedding2 out of 5
  • Grooming frequency4 out of 5
  • Drooling2 out of 5

Care

The routines that matter most for this breed. Open one at a time.

Nutrition

Feed the Giant Schnauzer a high-quality diet matched to its age and activity level, whether puppy, adult, or senior. As a large breed, it needs far more food than smaller dogs, so the budget adds up quickly, up to $100 a month or more for a growing puppy. The food bag is a good place to find how much to feed, and your veterinarian can advise on any concerns about weight or diet.

Feed adults a measured amount twice a day, ideally at the same times. Feed puppies more often, three or four times a day on a consistent schedule, and keep them on a large-breed puppy food until at least one year old to support healthy growth. Avoid overfeeding, since too many treats or too much food can lead to obesity.

These curious, intelligent dogs like a challenge, so slow-feeder bowls and puzzle feeders suit them well. Learn which human foods are safe for dogs and which are not.

As a large dog, the Giant Schnauzer is more likely to develop arthritis with age. A joint supplement with glucosamine and chondroitin is a common choice for large breeds, so talk to your veterinarian about whether one is right for your dog.

Grooming

The Giant Schnauzer has a dense, wiry, weather-resistant double coat: a soft undercoat beneath a harsh outer coat. Brush it weekly, and plan periodic visits to a groomer. Every few months the dog will need professional grooming, with the coat stripped out. Shaving or clipping can damage the texture and lead to more matting, which means more grooming.

The heavy eyebrows grow long and a groomer should trim them regularly so they do not interfere with the eyes or vision. Beyond regular bathing and grooming, Giant Schnauzers have no special skin needs.

Check the ears regularly. Look weekly for discharge, redness, or odor, and clean the ears every week or two with a dog-specific cleanser to help keep the canals healthy. Brush the teeth often with a toothpaste made for dogs.

Have any redness, sores, scabbing, or hair loss, or any eye redness, cloudiness, squinting, or discharge, evaluated by a veterinarian as soon as possible.

Exercise

Giant Schnauzers run more energetic than most big breeds and need a lot of exercise, at least 40 to 60 minutes every day. Long daily walks, play sessions with another dog, and romps in a fenced yard all do the job. Games like hide-and-seek or tennis-ball chase work the mind and body and keep the dog fit.

These dogs make great workout partners for people who run, bike, hike, cross-country ski, swim, or skijor. They also enjoy dog sports such as agility, tracking, herding, carting, rally, and competitive obedience, all of which build an active partnership with the owner.

A Giant Schnauzer needs companionship and a house with a yard. They do not do well in apartments or in homes where people are rarely around. With enough exercise, socialization, and play, they are generally well-behaved, though they stay on alert and will bark to let the family know something seems off, even if it is just a neighbor on the sidewalk.

Training

Highly intelligent and strongly territorial, the Giant Schnauzer loves its owners and feels a deep responsibility to protect them. The Giant Schnauzer learns quickly and can tell friend from foe. Giants want to be with their people and cannot stand being ignored or left alone in the yard, so this dog needs a job, even something as simple as chasing a ball.

Early socialization and puppy classes are a must with this strong, protective breed. Begin training and socialization in puppyhood so the dog learns that new people, animals, and experiences are not scary, which helps move it past wary, territorial tendencies. One prominent breed fancier calls the Giant a high-energy, protective guard dog and says it is not for the casual owner.

Giant Schnauzers are intelligent but can be hard-headed. Ease the stubborn streak with reward-based methods using small treats and favorite toys, and keep training firm, consistent, and gentle. They are eager to please and attentive to the family, so they respond well to positive reinforcement.

Well-trained Giants get along with kids and other dogs, and tend to do best with older children, since small kids can be knocked down by these big dogs during play. Affectionate and playful yet vigilant, they belong indoors with their people.

Health conditions

9 conditions are documented for the Giant Schnauzer.

A predisposition is not a diagnosis. Ask your vet which screenings make sense for your dog's age.

  • Dilated CardiomyopathyHeart
  • Factor VII DeficiencyBlood
  • Hip DysplasiaSkeletal
  • HypothyroidismHormones
  • Neuroaxonal DystrophyBrain and Spinal Cord
Show all 9 conditions Show fewer
  • Osteochondritis DissecansSkeletal
  • Progressive Retinal Atrophy 5Eyes
  • Progressive Retinal Atrophy, prcdEyes
  • Urate Kidney & Bladder StonesKidney and Bladder

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