Great Dane Dog Breed Information

Also known as: German Mastiff, Deutsche Dogge, Apollo of Dogs

A genuinely giant breed with a famously gentle temperament. Great Danes are loving, lower-energy than their size suggests, and one of the most expensive dogs in NZ to feed, vet and bury.

Adult grey Great Dane in profile, photo on Unsplash

A highly affectionate, highly trainable, great with young children dog. On the practical side: low grooming demands. The trade-off is drooly.

About the Great Dane.

The Great Dane is one of the most popular giant breeds in New Zealand despite the eye-watering lifetime cost, with steady DIA registrations and a strong presence in Auckland, Waikato and Canterbury. The breed’s reputation for being a gentle, calm housemate is broadly true, but the practical reality of living with a 70 to 90 kg dog reshapes a household: doors, cars, beds, vet bills, and lifespan all change.

Adults stand 71 to 86 cm at the shoulder, with males commonly reaching the higher end. Weight runs 50 to 90 kg depending on sex and line. The single short coat sits flat against the body and comes in seven recognised colours, with fawn, brindle, harlequin and mantle the most common in NZ. The coat looks almost glossy on a healthy adult and shows every cut and lump cleanly, which most owners come to appreciate.

The thing to know up front is the lifespan. Most NZ Great Danes live 7 to 10 years. A small fraction reach 12. If you’re choosing a breed for a 14-year companion, this isn’t it.

Personality and behaviour

Great Danes are deeply affectionate with their household and friendly with visitors after the first minute. The default temperament is calm and watchful rather than active or driven; the breed earned its “gentle giant” reputation honestly. Adults spend most of the day asleep on the largest dog bed in the house, get up for a walk, and return to the bed.

In the home they are soft, leaning, contact-seeking dogs. The breed’s habit of sitting on its owner’s lap as if it weighs 20 kg rather than 70 kg is a daily ritual. Most NZ Great Danes are easy with children, gentle around small dogs, and unbothered by visitors. The trait that surprises new owners is the lower energy: a Great Dane needs less daily exercise than a Labrador or a Border Collie, and demands a fraction of the mental stimulation.

The other surprise is fragility. Great Danes are not athletic in the way their size implies. They tear cruciate ligaments easily, twist stomachs, develop cardiac problems early, and break their long bones on slips. The breed needs careful management around stairs, slippery floors and hard play, especially through puppyhood and into early adulthood.

Drool is a constant feature of life. Great Danes drool after drinking, around food and during heat, and it ends up on walls, ceilings and your clothes after a head shake. Owners learn to keep a cloth handy.

Vocal habits are moderate. The breed alert-barks on real triggers and the bark itself is genuinely intimidating, but Great Danes are not yappy and most NZ owners find their adult dogs quieter than a typical mid-size dog.

Care and exercise

Plan on 45 to 75 minutes of moderate exercise per day for an adult, split across two or three short walks and some calm off-lead time in a secure area. Long forced runs, hard fetch and stair sprinting are wrong for the breed at any age and dangerous in puppies. The growth plates of the long bones don’t fully close until 18 to 24 months, and over-exercise in that window shows up later as elbow dysplasia, OCD lesions and joint pain.

Grooming is the easiest of any large breed. Weekly rub-down with a rubber curry mitt or grooming glove handles year-round shedding, and the short single coat dries fast after a wet walk. Nails grow fast and need monthly trimming; ignored Great Dane nails curl into the pad inside a couple of months. Drool requires its own routine.

The dietary priority is controlled growth and bloat management. Great Dane puppies grow too fast on regular puppy food, which drives developmental orthopaedic disease. Use a giant-breed puppy formula with calcium and phosphorus levels appropriate for slow growth until 18 to 24 months. Adults eat 6 to 10 cups of food a day, split into two or three meals. Single large meals raise bloat risk dramatically.

Bloat (gastric dilatation-volvulus) is the breed’s biggest preventable killer. Lifetime risk in Great Danes is among the highest of any breed. Many NZ owners arrange a prophylactic gastropexy at the desexing visit; the surgery tacks the stomach to the body wall and reduces twist risk to nearly zero. Discuss with your vet during the first health check.

The dog beds are a real budget line. Adult Great Danes need orthopaedic beds large enough to support the full body, generally 100 cm or more on the longest side, in NZ$200 to NZ$500 each. Cars need to be wagons, vans or SUVs; standard sedans don’t fit a Great Dane comfortably. Crates need to be giant-size XXL, NZ$300 to NZ$600.

Climate fit across New Zealand

The single short coat shapes the breed’s NZ climate fit, and the size shapes the housing fit.

  • Auckland and Northland. A solid fit. The mild climate suits the thin coat year-round and the breed handles upper North Island summers comfortably as long as midday walks are avoided December to February. Apartments are functionally impossible above ground floor; lifts are tight and stairs are wrong.
  • Wellington. Workable with kit. A fitted dog coat is standard for winter walks and the breed handles wind without complaint. Wellington’s hill suburbs are challenging given the breed’s stair limits; flat-section homes suit better.
  • Christchurch and Canterbury. A good fit, especially on lifestyle blocks. The cold winters need a coat for outdoor time but the breed sleeps inside on a heated bed without issue. Long Canterbury summers suit the breed well; watch for grass-seed risks on rural walks.
  • Central Otago and Southland. Possible but harder. The thin coat limits long winter walks without proper jackets, and the breed should be sleeping inside year-round. Owners who commit to indoor housing, jacketed walks and indoor enrichment through the worst weeks do well.

Where to find a Great Dane in New Zealand

Three reasonable paths, with a strong slant toward registered breeders.

  1. Registered NZKC breeders. The Dogs NZ breeders directory lists Great Dane Club of NZ affiliated breeders. Expect a 6 to 18 month waitlist and NZ$2,500 to NZ$4,500 per puppy from health-tested parents. A reputable breeder will show you cardiac evaluations on both parents, hip and elbow scores, and ideally a thyroid panel. Both parents should be present, confident around the breeder and stable around strangers. Reputable breeders ask serious questions about your home, your finances, your work hours and your stair situation. That’s a feature.
  2. Great Dane rescue. Great Dane Rescue NZ rehomes adults surrendered after life changes (divorce, downsizing, the cost shock around year three). Most rescue Great Danes are between two and six years old. Adoption fees run NZ$500 to NZ$900. A rescue Great Dane with documented temperament can be a smarter pick than a puppy, especially given the lifespan and cost calculus.
  3. SPCA NZ. Pure Great Danes turn up rarely. Great Dane crosses are more common. SPCA staff are conservative about placing giant breeds and will ask serious questions about your space and budget.

Avoid colour-fad breeders charging premiums for “rare” merles, double-merles or mismarked dogs. Double-merle Great Danes (the result of breeding two merle parents) carry serious deafness and eye-defect risks and are not bred by reputable kennels. The breed’s harlequin and merle colours are correct in single-copy form only; ask your breeder how the colours were bred.

Insurance and lifetime cost

Great Dane insurance claims in NZ cluster around bloat surgery, cardiac care, orthopaedic issues and cancer. The lifetime cost numbers are bigger than for any other popular NZ breed, which shapes how owners think about insurance.

  • Bloat surgery. Emergency GDV surgery runs NZ$6,000 to NZ$12,000. A prophylactic gastropexy at desexing runs NZ$1,200 to NZ$2,500 and is meaningfully cheaper as well as life-saving.
  • Cardiac cover. DCM treatment runs NZ$2,000 to NZ$4,000 a year for medication and monitoring. A lifetime policy with no per-condition cap matters here.
  • Cancer cover. Osteosarcoma treatment with amputation and chemotherapy runs NZ$10,000 to NZ$18,000. Many giant-breed owners choose comfort care over treatment given the prognosis, but the option deserves a real budget line.
  • Premium escalation from age five. Great Dane premiums climb steeply once the cancer-risk window opens. A lifetime policy taken out as a puppy locks in the entry-age band; switching insurers later means re-underwriting and exclusions.

For a typical NZ Great Dane on a mid-range lifetime policy, lifetime cost (purchase plus 8 to 10 years of food, vet, insurance, council registration, beds, gear and end-of-life care) lands around NZ$45,000 to NZ$70,000. Food alone runs NZ$20,000 to NZ$40,000 across a lifetime. The shorter lifespan compresses the spend into fewer years rather than reducing it. A single bloat or cancer event can shift the total by NZ$15,000.

Lifespan
7–10 yrs
Typical for the breed
Weight
50–90 kg
Adult, both sexes
🏃
Daily exercise
60 min
Walks, play, water
🇳🇿
NZ rank
#25
DIA registrations 2025

The Great Dane, by the numbers.

Each trait scored 1 to 5 on the AKC scale. The verdict synthesises the data; the panels below show the strengths, group averages, and the full trait table.

Top strengths

01 Affectionate with Family 5/5
02 Good with Young Children 4/5
03 Good with Other Dogs 4/5
04 Drooling 4/5

Family Life

avg 4.3

Affectionate with Family

12345
Independent Lovey-dovey

Good with Young Children

12345
Not recommended Great with kids

Good with Other Dogs

12345
Not recommended Sociable

Physical

avg 2.7

Shedding

12345
No shedding Hair everywhere

Grooming Frequency

12345
Monthly Daily

Drooling

12345
Less A lot

Social

avg 3.5

Openness to Strangers

12345
Reserved Best friend with everyone

Playfulness

12345
Only when you want to play Non-stop

Watchdog / Protective

12345
What's mine is yours Vigilant

Adaptability

12345
Lives for routine Highly adaptable

Personality

avg 3.0

Trainability

12345
Self-willed Eager to please

Energy Level

12345
Couch potato High energy

Barking Level

12345
Only to alert Very vocal

Mental Stimulation Needs

12345
Happy to lounge Needs a job

Living with a Great Dane.

A 24-hour breakdown of how this breed's day typically goes, scaled to its energy, mental-stimulation, and grooming needs.

A typical 24-hour day

Living with a Great Dane day to day.

6h 53m

Hands-on time per day

💤

Sleep

12h

Adult dogs sleep 12-14 hours per day, including a daytime nap.

🏃

Exercise

1h

A daily walk plus a short game.

🧠

Mental stim

24m

Some training or puzzle work each day to keep them engaged.

🍽

Feeding

25m

Two measured meals. Don't free-feed; food motivation runs high.

Grooming

4m

Quick brush per day. Almost no professional grooming needed.

🐕

With you

5h

Velcro pet. Will follow you room to room when you're home.

🏠

Alone

5h 7m

Typical work-from-home or part-day-out alone time.

Indicative. Actual time varies by household, age, and the individual animal. The "with you" slot scales with the breed's affection score; mental-stim time with its mental-stimulation rating.

What a Great Dane costs to own.

An indicative NZ lifetime cost: purchase, setup, then food, vet, insurance, grooming and other annual outgoings. Adjust the inputs to see how your choices change the total.

A Great Dane costs about

$465per month

Per week

$107

Per day

$15

Lifetime (9 yrs)

$54,170

Adjust the inputs:

Where the monthly cost goes

Food

$217 / mo

$2,600/yr · breed-appropriate dry & wet food

Shop food

Insurance

$147 / mo

$1,760/yr · lifetime cover protects against breed-specific claims

Get a Cove quote

Vet (avg)

$64 / mo

$770/yr · routine checks plus breed-specific risk

Find a vet

Grooming

$0 / mo

$0/yr · brushes, shampoo, professional clips

Shop grooming

Other

$38 / mo

$450/yr · toys, treats, dental, boarding

Shop essentials

Indicative NZ averages calculated from breed weight, grooming need and screened-condition count. One-off costs (purchase $3,500 + setup $450) are factored into the lifetime total but not the monthly figure.

How does the Great Dane compare?

This breed

Great Dane

$54,170

9-year lifetime cost

  • Purchase + setup$3,950
  • Food (lifetime)$23,400
  • Vet (lifetime)$6,930
  • Insurance (lifetime)$15,840
  • Grooming (lifetime)$0
  • Other (lifetime)$4,050

Reference

Average NZ medium dog

$38,920

12-year lifetime cost

  • Purchase + setup$2,200
  • Food (lifetime)$13,200
  • Vet (lifetime)$6,000
  • Insurance (lifetime)$11,400
  • Grooming (lifetime)$2,400
  • Other (lifetime)$3,720

A Great Dane costs about $15,250 more over a lifetime than the average nz medium dog, mostly higherfood and higherinsurance.

What to ask the breeder.

Reputable NZKC breeders test for these conditions and share results without being prompted. If a breeder won't share screening results, that is itself an answer.

Common

4 conditions

Bloat (gastric dilatation-volvulus)

The single biggest preventable killer. Lifetime risk in Great Danes is among the highest of any breed. Many NZ owners arrange prophylactic gastropexy at the desexing visit.

Dilated cardiomyopathy (DCM)

Annual cardiac echo from age three is standard for breeding stock and recommended by NZ specialist cardiologists for adult pets.

Hip and elbow dysplasia

Ask breeders for hip and elbow scores on both parents.

Osteosarcoma (bone cancer)

One of the most common causes of death in giant breeds, often presenting between five and eight years.

Occasional

3 conditions

Wobbler syndrome (cervical vertebral instability)

An occasional condition in the Great Dane. Worth asking about and DNA testing where available.

Hypothyroidism

An occasional condition in the Great Dane. Worth asking about and DNA testing where available.

Cruciate ligament rupture

An occasional condition in the Great Dane. Worth asking about and DNA testing where available.

The Great Dane in NZ.

  • NZ popularity: ranked #25
  • Popularity: A consistent presence in NZ council registrations despite the cost. Strongest in Auckland, Waikato and Canterbury. Rural and lifestyle-block owners are over-represented relative to apartment cities, for obvious reasons.
  • Typical price: NZ$2500–4500 from registered breeders
  • Rescue availability: rare
  • NZ climate fit: Short single coat handles NZ summers comfortably and needs a fitted coat for cold, wet winters in the lower South Island. The thin coat shows scrapes and lumps clearly, which most owners find useful.
  • Living space: Ground-floor living is strongly preferred. Adult Great Danes shouldn't be doing stairs daily until skeletally mature. A securely fenced section is essential, six-foot fencing without gaps, and a large indoor sleeping space with an orthopaedic bed.

Who the Great Dane is for.

Suits

  • Households with serious budget for food, vet and equipment
  • Owners with secure ground-floor space and limited stairs
  • Families wanting a calm indoor giant

Less suited to

  • Apartments above ground floor
  • Tight budgets
  • Owners away from home all day
  • Households planning a 12 to 14 year companion

Common questions.

How long do Great Danes live in New Zealand?
Median lifespan in NZ is 7 to 10 years. A small fraction reach 11 or 12. Cancer (osteosarcoma especially), bloat, and cardiac disease are the dominant causes of death. The shorter lifespan is a real cost of the size; owners should be prepared for fewer years than with a Labrador or Border Collie.
How much does a Great Dane cost to feed in NZ?
Adult Great Danes eat roughly 6 to 10 cups of giant-breed food a day. At NZ retail prices for a quality giant-breed dry food, expect NZ$200 to NZ$350 a month on food alone. Lifetime food cost over 8 to 10 years runs NZ$20,000 to NZ$40,000 before any vet, insurance or gear.
Are Great Danes good with children?
Yes, the breed is famously gentle with its own family children. The risk is incidental: a 70 kg dog backing into a toddler will knock them over. Households with very young children should manage shared spaces and teach the dog to settle on a mat, away from running children.
Are Great Danes a guarding breed?
Originally yes, modern Great Danes mostly no. The breed retains a calm, watchful temperament and a genuinely intimidating bark, but most NZ Great Danes are friendly with visitors and not actively protective. Their size alone is the main deterrent.

If the Great Dane appeals, also consider.

Breeds with a similar profile that might suit your household.

Information only. Breed traits and health notes on this page are aggregated from public registry and breed-authority sources. Individual animals vary; this page is general information, not veterinary, behavioural, or insurance advice. Always consult a registered NZ vet or breeder for guidance specific to your situation.