At a glance
- Millie, a tortoiseshell cat owned by Leslie Greenhough of Greater Manchester, England, is reportedly 31 years old, born in 1995.
- Greenhough calls getting Millie into Guinness World Records his "life ambition," but has acknowledged incomplete documentation could prevent that.
- Guinness World Records has not listed Millie as a titleholder. The current GWR verified oldest living cat is Flossie, a British tortoiseshell born the same year, confirmed at age 26 in 2022.
- The report of Millie's age comes from a single wire service story (SWNS), syndicated across multiple outlets, rather than independent multi source reporting.
A tortoiseshell cat named Millie has reportedly reached 31 years old, according to her owner, Leslie Greenhough, 71, of Greater Manchester, England. Greenhough says Millie was born in 1995 and has been with him since she was a kitten.
If accurate, an age of 31 would be extraordinary for a domestic cat, whose typical lifespan runs somewhere between 12 and 18 years depending on breed, health and whether they live indoors. But the claim has not been independently verified by Guinness World Records or any other record keeping body, and Greenhough himself has acknowledged the documentation to prove it may not exist.
Meet Millie
Greenhough describes Millie as a tortoiseshell cat who has lived with him for essentially her entire life, dating back to a 1995 photo he says his wife took of her as a kitten. He credits her longevity, in part, to roughly a decade of drinking bottled Buxton mineral water, alongside a diet that has included salmon, prawns, chicken and tuna.
Why 31 is such an extraordinary age for a cat
Most domestic cats live into their early to mid teens, with some well cared for indoor cats reaching their late teens or occasionally their twenties. A cat reliably documented at 31 years old would sit at the extreme upper edge of feline longevity, comparable to the handful of cases that have drawn Guinness World Records attention in the past.
What her owner says about her early life
According to Greenhough's account, Millie has been in his household since kittenhood in the mid 1990s, making her current age a matter of consistent ownership rather than a documented birth certificate or veterinary record established at birth. That distinction matters for record verification purposes, discussed below.
Why record verification matters
Greenhough has said that getting Millie recognized by Guinness World Records is his "life ambition," while also acknowledging that a lack of documentary proof of her age could stand in the way of that happening. As of this writing, Guinness World Records has not listed Millie on its public oldest living cat record page, and no statement from the organization confirming or reviewing her case was found.
It is worth noting that the current Guinness verified record for oldest living cat belongs to a different animal: Flossie, a British domestic shorthair/tortoiseshell from Merseyside, also born in December 1995, whose age was formally confirmed by Guinness World Records at 26 years old in November 2022. Millie and Flossie share a birth year and a breed type, but only Flossie's age has been independently verified through the documentation process Guinness requires.
Other unverified claims of extreme cat longevity circulate periodically in media coverage, including a cat named Rosie in Norwich reported at 33 years old before her death, without formal record confirmation. The space around "world's oldest cat" claims is crowded with heartfelt but not always documentable stories, which is part of why formal verification exists in the first place.
What veterinarians generally know about senior cat longevity
Indoor cats tend to live substantially longer than outdoor cats, largely due to reduced exposure to traffic, predators, disease and other cats. Genetics, spaying or neutering, diet, dental care and regular veterinary attention all play roles in a cat's lifespan, though no single factor guarantees an unusually long life.
What not to assume from one unusually old cat
A single reported case of extreme age, however heartwarming, is not evidence of a specific food, water source or routine reliably extending feline lifespan. Diet claims tied to Millie's longevity, such as the mineral water detail reported by her owner, are anecdotal and have not been evaluated by veterinary researchers. Readers should treat Millie's story as a compelling and possibly true account of one cat's long life, not as verified medical guidance.
Sources
How we reported this: Buddylio reviewed the named sources, checked the organizations and figures shown above, and added context for animal lovers. Any illustration is labeled and does not depict the actual animals or scene. Articles are editorial content, not veterinary advice.
