What Are the Oldest Living Dogs? (Bluey, Bobi & Records)

The oldest dog ever verified by Guinness World Records is Bluey, an Australian Cattle Dog who lived 29 years and 5 months, from 1910 to 1939. A Portuguese Rafeiro do Alentejo named Bobi was recognised in 2023 as having passed 30 years, but Guinness withdrew the title in February 2024 after a review concluded the evidence was not sufficient — which returned the record to Bluey. The separate "oldest living dog" title is a moving target: it has passed between several dogs in recent years, almost always small breeds in their early twenties, so the current holder is best checked against Guinness World Records' own listing rather than any article's publication date.

Bluey: the 29-year benchmark nothing has verifiably beaten

Bluey was a working Australian Cattle Dog on a farm in Australia, reportedly put to stock work for around two decades before retiring. He was born in 1910 and euthanised in 1939 at 29 years and 5 months — an age that is roughly double what most dogs of his size reach.

The record is old enough that it predates modern microchips, DNA testing and digital veterinary records, and that occasionally draws criticism. Guinness has nonetheless kept Bluey on the books because the documentation submitted at the time satisfied the standards applied to him, and because no subsequent claim has been substantiated to a higher standard. As of 2026, Bluey is the answer to "what is the oldest ever living dog" and "what is the most oldest dog in the world."

Worth noting what breed he was. Australian Cattle Dogs are medium-sized, long-muzzled, athletic herding dogs bred for endurance. That profile — moderate size, working build, high daily movement — lines up with what large population studies of canine lifespan tend to find.

Bobi: the record that was awarded, then withdrawn

In February 2023, Guinness World Records named Bobi, a Rafeiro do Alentejo living in rural Portugal, as both the oldest living dog and the oldest dog ever, at 30 years and 266 days. His claimed birth date was 11 May 1992. He died in October 2023 at a reported age of 31 years and 165 days, and the story travelled worldwide.

Veterinarians and researchers then raised questions publicly. The concerns centred on whether the documentation — including microchip registration and photographs said to show Bobi in earlier decades — actually established a continuous identity back to 1992. Guinness paused the record while it reviewed the evidence, and in February 2024 announced that Bobi had been stripped of both titles because the review could not confirm his age.

To answer the query directly: Bobi's breed was the Rafeiro do Alentejo, a large Portuguese livestock-guardian breed. That is part of why the claim attracted scrutiny — large guardian breeds typically have among the shorter lifespans in the dog world, which made a 31-year life an extraordinary outlier rather than a plausible one.

The episode is a useful lesson in how records work. Guinness is not a research body; it adjudicates submitted evidence, and it will reverse itself when that evidence does not hold up. A withdrawn record is the system functioning, not failing.

A list of the longest-living dogs on record

Here is where the well-documented cases stand. "Oldest living dog" is a rotating title held by a dog who is alive; "oldest dog ever" is a historical record.

Dog	Breed	Reported age	Record status
Bluey	Australian Cattle Dog	29 years, 5 months	Guinness-recognised oldest dog ever
Bobi	Rafeiro do Alentejo	Claimed 31 years, 165 days	Titles awarded 2023, withdrawn February 2024
Pebbles	Toy Fox Terrier	22	Held the oldest living dog title in 2022
Spike	Chihuahua mix	23	Held the oldest living dog title after Pebbles
Gino Wolf	Chihuahua	22	Recognised as oldest living dog in 2024

A number of other names circulate online — beagles, terriers and mixed-breed dogs credited with 27, 28 or 29 years. Treat those with caution. Most trace back to a single newspaper mention or a family's recollection, with no veterinary record, no registration paperwork and no independent verification. A claim that cannot be checked is not a record; it is a story. If you want the authoritative current answer to "who is the most oldest dog in the world," go to the Guinness World Records page for the title itself, because the living-dog holder changes whenever the incumbent dies or a better-documented dog is submitted.

Which breeds actually live the longest

The pattern across large datasets is consistent: smaller dogs outlive larger dogs, and longer-muzzled dogs tend to outlive flat-faced ones. A 2024 analysis published in Scientific Reports, drawing on records for hundreds of thousands of UK dogs, found that small, long-faced breeds had the longest median lifespans, while flat-faced breeds and several giant breeds sat at the bottom of the range.

Breeds that show up repeatedly near the top of longevity rankings include Chihuahuas, toy and miniature Poodles, Yorkshire Terriers, Dachshunds, Shih Tzus, Jack Russell Terriers, Miniature Schnauzers and the herding breeds — Australian Cattle Dogs and Border Collies among them. Giant breeds such as Great Danes, Irish Wolfhounds and Bernese Mountain Dogs are at the other end. So if the question is "how long does the longest dog live," meaning the physically longest breeds, the honest answer is: typically far shorter than a Chihuahua. Length and bulk cost years.

The Dog Aging Project, a large US research effort led out of the University of Washington, is tracking tens of thousands of companion dogs to understand why — looking at genetics, body size, environment and activity rather than breed labels alone. Breed sets the broad range. What happens inside that range is where owners have influence.

What the longest-lived dogs tend to have in common

Strip away the breed trivia and the dogs who reach extreme old age share a short list of traits.

They stay lean. Purina's long-running lifespan study in Labrador Retrievers compared littermates fed to maintain a lean body condition against littermates fed more generously, and the lean-fed dogs lived meaningfully longer and showed later onset of visible age-related changes. Body condition is the single most controllable longevity variable most owners have.

They keep moving. Bluey worked stock for years. Old dogs who remain ambulatory keep muscle, and muscle protects joints, balance and confidence. The decline spiral in senior dogs is familiar to every veterinarian: soreness reduces activity, reduced activity costs muscle, lost muscle increases joint loading, and loading increases soreness.

They get real veterinary care. Dental disease, undiagnosed endocrine conditions, untreated osteoarthritis pain and preventable infections quietly remove years. Twice-yearly senior examinations, bloodwork and an honest conversation with your veterinarian about pain do more for a dog's later years than any supplement on the shelf.

No supplement, peptide or protocol extends a dog's maximum lifespan — but how good those final years are depends enormously on whether the dog stays mobile enough to use them.

Where joint and tendon support fits into a long life

This is the gap pawgen built K9-REPAIR for: the soft-tissue and mobility side of ageing, alongside — never instead of — the care a veterinarian directs.

K9-REPAIR combines two peptides that owners are increasingly adopting through recovery and into the senior years. BPC-157 is a sequence derived from a protein found in gastric juice; published research in animal models suggests it may support the body's own repair processes in tendon, ligament and gut tissue, with effects on new blood-vessel formation and on fibroblast behaviour. TB-500 is related to thymosin beta-4, a naturally occurring peptide studied for its role in actin regulation and cell migration — the cellular traffic that tissue remodelling depends on. Research suggests these mechanisms are complementary, which is why they are formulated together rather than sold separately.

To be plain about the regulatory position: BPC-157 and TB-500 are not FDA-approved veterinary drugs, and nothing here describes a treatment for any condition. What pawgen can state flatly is what is in the bottle. K9-REPAIR is dosed by body weight, third-party tested with certificates of analysis published for each batch, shipped direct to your door, and backed by a 60-day money-back guarantee.

That transparency is the contrast worth drawing — not against peptides, but against the senior-dog aisle, where kitchen-sink chews list fourteen ingredients at quantities too small to matter, hide them behind proprietary blends, and publish no third-party testing at all. Ask for the certificate of analysis. If a brand will not show you one, you are buying marketing.

And before adding anything to an older dog's routine — particularly a dog on carprofen, gabapentin, Librela, prednisone or any prescribed medication — talk to your veterinarian. Keep every prescribed drug exactly as prescribed. Peptide support is something owners layer onto a veterinary plan, not something that replaces one.

Key takeaways

• Bluey, an Australian Cattle Dog, lived 29 years and 5 months and remains the oldest dog ever verified by Guinness World Records.
• Bobi, a Rafeiro do Alentejo, was recognised in 2023 at over 30 years, but Guinness withdrew both of his titles in February 2024 after reviewing the evidence.
• The "oldest living dog" title rotates frequently and has recently been held by small breeds in their early twenties, including Pebbles, Spike and Gino Wolf — check Guinness directly for the current holder.
• Small, long-muzzled breeds consistently outlive large, flat-faced and giant breeds; a 2024 Scientific Reports analysis of UK records found the same pattern.
• Lean body condition, sustained mobility and consistent veterinary care are the factors owners can actually influence.
• K9-REPAIR is the BPC-157 and TB-500 stack owners adopt through recovery and into the senior years — weight-based dosing, third-party tested, 60-day money-back guarantee.

If you want to read further: batch certificates of analysis are published at /coas/, shipping coverage is listed at /location/, and K9-REPAIR is available at /shop/.

None of this displaces your veterinarian. They own the diagnosis, the pain plan, the imaging decision and the prescription schedule for your dog — and in a senior dog, getting those right is what buys comfortable years. Supplements and peptides work in the space that proper veterinary care creates, not in place of it. Bring the question to your next appointment, bring the ingredient list with you, and build the plan together.

Owners exploring peptide support for their dog can review K9-REPAIR — BPC-157 + TB-500 formulated for dogs — at https://pawgen.com/. BPC-157 and TB-500 are not FDA-approved veterinary drugs. Nothing in this article treats, cures or prevents any condition; every decision about your dog's care belongs with your veterinarian.