Great Pyrenees vs Old English Sheepdog
A side-by-side comparison to help you find the right breed for your lifestyle.
Great Pyrenees
Also known as: Pyr, Pyrenean Mountain Dog, Chien de Montagne des Pyrenees
The Great Pyrenees is a majestic livestock guardian weighing 38-72 kg, bred to work independently in the Pyrenees Mountains. While gentle with family, their nocturnal barking, roaming instinct, and independent nature require experienced owners with secure fencing. Not recommended for apartments or first-time owners.
Extra Large
Medium
10-12 yrs
65-82 cm
Old English Sheepdog
The Old English Sheepdog is a large, shaggy herding breed known for its distinctive shaggy double coat and gentle, playful disposition. Originally bred in England for driving cattle and sheep, this affectionate and intelligent breed is also a beloved family companion.
Extra Large
High
10-12 years yrs
56+ cm cm
Quick Comparison
| Trait | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| Energy | ||
| Trainability | ||
| Grooming Needs | ||
| Family Friendly | ||
| Independence |
Key Characteristics
| Good with Kids | ||
| Good with Dogs | ||
| Good with Cats | ||
| Hypoallergenic | ||
| Apartment Friendly | ||
| First-Time Owner OK |
| Detail | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| Size | Extra Large | Extra Large |
| Energy Level | Medium | High |
| Grooming | High | High |
| Trainability | challenging | challenging |
| Barking Level | High | High |
| Shedding Level | High | Low |
| Chew strength | Moderate | Moderate |
| Housing | Acreage | Yard |
Owner Fit & Decision Guide
Owner Match
| Trait | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| Experience Level | Advanced | Experienced |
| First-Time Owner | ||
| Ideal Owner | Experienced owner with acreage or large securely fenced yard, tolerant of nocturnal barking, understanding of independent working breeds, possibly with livestock to guard. Patient with training and comfortable with a dog that thinks for itself. | Active individual or family who can provide adequate exercise and training for a Old English Sheepdog. |
Great Pyrenees Dealbreakers
- Live in an apartment or rental
- Have close neighbors sensitive to barking
- Want a dog that obeys commands instantly
- Don't have a secure physical fence
- Want a pristine, fur-free home
- Need a running or high-intensity exercise partner
Old English Sheepdog Dealbreakers
- Cannot meet 90-120 min daily exercise
- Cannot commit to grooming needs
Surrender Risk
| Factor | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| Risk Level | High | Medium |
| Primary Reasons | Nocturnal barking - owners get a fluffy puppy that starts barking all night at 1 year old, Roaming/escape - jumping fences to expand territory, Resource guarding - growling over food scares families who expected Golden Retriever temperament, Size underestimated - 120lb dog that refuses to move and may growl when asked to get off couch | Underestimated exercise needs, Behavioral challenges, Cost of care |
Temperament & Personality
Behavior Comparison
| Trait | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| Prey Drive | ||
| Watchdog Ability | ||
| Stranger Friendly | ||
| Drool Level | ||
| Wanderlust |
Vocalization
| Trait | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| Barking Level | High | High |
| Howling Tendency | ||
| Whining Tendency | Low | Low |
| Separation Vocalization |
Safety & Reliability
| Trait | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| Escape Artist | ||
| Dog Park Suitable | ||
| Off-Leash Reliable | ||
| Small Animal Safe | ||
| Leash Reactivity | ||
| Resource Guarding Risk | Moderate to High | Low |
Great Pyrenees Social Traits
High
Same-sex aggression common, especially females. Keep opposite-sex pairs for peace.
Old English Sheepdog Social Traits
Moderate
Generally friendly
Training
Great Pyrenees
- Must convince them your request is worth their effort
- Harsh corrections cause shutdown or defensive behavior
- Focus on management over strict obedience
- Accept that recall will never be 100% reliable
Old English Sheepdog
- Keep training sessions short and varied
Great Pyrenees Considerations
The #1 complaint from suburban owners. Pyrs are genetically hardwired to patrol and bark at night - they were bred to ward off wolves and bears. This instinct cannot be trained out, only managed. Expect deep, booming barks at 2 AM when a leaf blows across the driveway.
Great Pyrenees do not believe in property lines. Without a secure 5-6 foot physical fence, they will expand their territory to include the entire neighborhood. They are notorious escape artists and will take the shock from invisible fences to pursue threats.
Adult Pyrs often exhibit severe aggression toward dogs of the same sex, particularly females. This usually manifests around social maturity (18-24 months). Opposite-sex pairs are generally recommended.
Pyrs are not dumb - they are independent. When called, they evaluate whether coming is more important than what they are currently doing (usually guarding). If they decide it isn't, they will ignore you completely.
Old English Sheepdog Considerations
This is a "Velcro" breed in the truest sense. They were bred to work closely with shepherds and drovers, never straying far. In a modern home, this translates to a dog that may panic when left alone. Destructive chewing, howling, and house soiling are common symptoms of distress if isolation training is not started immediately in puppyhood.
The OES has a unique, ringing bark often described as "two pots clanging together." It is loud, deep, and can become a nuisance. They are alert watchdogs and will vocalize at delivery trucks, neighbors, and squirrels. This makes them poor candidates for apartments with noise restrictions.
As a drover's dog, the OES controls movement. In a family setting, this often manifests as nipping at the heels of running children or "body checking" people to move them. While not aggressive, this behavior can be frightening for toddlers and annoying for guests.
While generally social, some OES lines—particularly males—can develop aggression toward other dogs of the same sex around social maturity (18-24 months). This requires vigilant management in multi-dog households.
Multi-Species Compatibility
| Species | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| With Cats | Excellent - bred to protect vulnerable animals, views cats as part of the flock to guard | Generally safe with proper introduction |
| Small Mammals | Good - low prey drive, protective instinct toward smaller animals in their family | Supervision required |
| Birds / Reptiles | Good with supervision - generally safe due to arrested predatory sequence | Caution advised |
Advanced Behavior
| Trait | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| Predatory Sequence Risk | Arrested | Medium |
| Biddability | Low | Low |
| Noise Sensitivity | Low | Low |
| Territorial Barking | ||
| Same-Sex Aggression Onset | 18 months | 18 months |
Great Pyrenees: Predatory sequence arrested early - may chase predators to drive away but lack dissect/consume drive. Brilliant problem solvers but low 'working intelligence' (willingness to follow commands). Bred to work without humans so don't look to humans for answers.
First Year & Life Stages
First Year Challenges
| Challenge | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| Puppy Difficulty | ||
| Destructive Phase | 6-18 | 6-18 |
| House Training | Medium | Moderate |
| Crate Training | Medium | Medium |
| Adolescent Regression |
Great Pyrenees: Pyr puppies are large, stubborn land sharks. A 6-month-old is the size of a German Shepherd but has the brain of a toddler. Critical socialization window 8-16 weeks - must expose to strangers, other dogs, and strange noises or natural guarding instinct can turn into fear-aggression.
Old English Sheepdog: Old English Sheepdog puppies require consistent training and patience.
Life Stages Timeline
| Stage | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| Puppy Phase | 18 months | 12 months |
| Adolescence | 10-24 | 6-18 |
| Adult Years | 2-8 | 2-8 |
| Senior Onset | ~8 years | ~8 years |
| Peak Energy Age | 1-2 years | 1-3 years |
Size & Physical Characteristics
Physical Stats
| Measurement | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| Height | 65-82 cm | 56+ cm cm |
| Weight | Not enough data yet | Not enough data yet |
| Size Category | Extra Large | Extra Large |
| Lifespan | 10–12 years | 10–12 years |
| Litter Size | 6-10 | 4-8 |
Great Pyrenees Coat
Old English Sheepdog Coat
Lineage & Origin
| Detail | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| Original Purpose | Autonomous livestock guardian - protecting sheep from wolves and bears in the Pyrenees Mountains without human guidance | massive, profuse coats that are nearly impossible for a pet owner to maintain without cutting |
| Origin | Pyrenees Mountains (France/Spain), ancient breed | predators |
Breeding Details
| Detail | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| C-Section Rate | Low | Varies |
| Whelping Difficulty | Easy | Medium |
| Puppy Mortality Rate | Low | Low |
Physical Risks
| Risk | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| Bloat / GDV Risk | High | Low |
| Slippery Floor Risk | Medium | Low |
| Min Fence Height | 1.5m | 1.5m |
| Dig / Escape Risk | High | Low |
Health & Common Conditions
Great Pyrenees Health Issues
Old English Sheepdog Health Issues
Great Pyrenees Suggested Tests
- Gastropexy (stomach tacking) - recommended during spay/neuter
- Neuronal Degeneration (NDG) DNA test
- Hip Evaluation (OFA)
- Elbow Evaluation
- Patella Evaluation
Old English Sheepdog Suggested Tests
- OFA/PennHIP certificates (Hip Dysplasia)
- DNA test for MDR1
- DNA test for PCD
- Annual CAER ophthalmologist exams (Hereditary Cataracts)
- Thyroid panel (Hypothyroidism)
Health Risk Overview
| Risk Factor | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| Cancer Risk | High (osteosarcoma) | Medium |
| Cardiac Risk | Low | Low |
| Neurological Risk | Medium (NDG) | Low |
| CCL/ACL Tear Risk | Medium | Low |
| Vet Burden Tier | High | Medium |
Sensitivities & Allergies
| Sensitivity | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| Skin Allergies | ||
| Environmental Allergies | ||
| Stomach Sensitivity | Low | Low |
| Food Allergies | Generally robust |
Health Maintenance
| Care Item | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| Nail Growth Rate | Normal | Normal |
| Eye Care Needs | Medium (entropion risk) | Low |
| Anal Gland Issues | Rare | Occasional |
Senior Care & Aging
Great Pyrenees Senior Care
Common Senior Issues
- Arthritis/mobility decline
- Osteosarcoma (bone cancer)
- Hip dysplasia progression
- Vision decline
Mobility slows around 8+ years. Arthritis management becomes primary focus. Ramps for cars and stairs become necessary.
Old English Sheepdog Senior Care
Common Senior Issues
- Arthritis
- Vision decline
- Cognitive changes
Senior care varies by individual health.
Grooming & Care
Great Pyrenees
high maintenanceOld English Sheepdog
high maintenanceLifestyle Compatibility
Great Pyrenees Daily Life
Old English Sheepdog Daily Life
Housing & Legal Restrictions
| Restriction | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| BSL Restricted | ||
| Common Rental Ban | ||
| Insurance Blacklist | ||
| Weight Category | Over 50lbs | Under 50lbs |
Climate Tolerance
| Climate | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| Heat Tolerance | ||
| Cold Tolerance | ||
| Water Affinity | Low | Medium |
Travel Compatibility
| Activity | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| Car Travel | Good | Good |
| Camping | ||
| Beach Friendly | ||
| Hiking Rating | ||
| Cabin Flight Eligible | ||
| Hotel Friendly Size |
Niche Suitability
| Role | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| Service Dog | Low | Low |
| Therapy Dog | Low | Low |
| Deep Pressure Therapy | ||
| Canicross / Bikejoring | ||
| Apartment Adaptable | ||
| Tactile / Sensory Friendly | ||
| Livestock Guardian | ||
| Medical Alert | None | Low |
Costs & Expenses
Upfront Costs
| Cost | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| Purchase Price | $1,800-4,000 | N/A |
| Initial Cost Range | $1,800–$4,000 | $1,000–$2,500 |
| Cost Tier |
Ongoing Costs
| Cost | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| Monthly Range | $180–$300 | $100–$180 |
| Yearly Range | $2,160–$3,600 | $1,200–$2,160 |
| Food / Month | $100-150 | $70-120 |
| Insurance / Month | $50-80 | N/A |
| Grooming / Session | $100-200 | $100-150 |
| Vet Routine / Year | $600-1,500 | N/A |
| Monthly Cost Tier |
Great Pyrenees Lifetime Cost
$25,000-45,000
Old English Sheepdog Lifetime Cost
N/A
Quirks & Fun Facts
Daily Quirks
| Quirk | Great Pyrenees | Old English Sheepdog |
|---|---|---|
| Snoring | ||
| Flatulence | Rare | Occasional |
| Slobber Level | Moderate | Low |
| Smell When Wet | Mild | Moderate |
| Zoomies Frequency | Rare | Occasional |
| Counter Surfing | ||
| Digging Tendency | High | Low |
Great Pyrenees Quirks
The Pyr Paw
Will forcefully paw at you to demand attention - can be painful given their size and claw strength
The Pyr Lean
Shows affection by leaning their entire 100lb+ weight against your legs
Mud Magnet
White coat is surprisingly self-cleaning (mud dries and falls off) - but the mud falls off onto your floor
Selective Deafness
Will evaluate your command, decide if it's worth their effort, and ignore you if it isn't
Snow Obsession
Will refuse to come inside during snowstorms - thrive in freezing temperatures
Frequently Asked Questions
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