Calling all ginger cat lovers. Today, 1 September, is Ginger Cat Appreciation Day, an annual celebration dedicated to those unmistakable orange felines.
Whether you call them ginger, orange or marmalade cats, their distinctive coats have made them some of the most recognisable pets around. There is also some fascinating science hiding underneath all that orange fur.
How Ginger Cat Appreciation Day started
Ginger Cat Appreciation Day has been observed on 1 September since 2014.
The day was created by American software engineer and animal rescue advocate Chris Roy following the death of his beloved ginger cat, Doobert. Roy had found Doobert as a stray kitten in 1997 and cared for him for 17 years.
Doobert also inspired the name of Roy’s animal rescue platform, which was created to help connect animals in need with rescue organisations and volunteer transporters.
Why are so many ginger cats male?
One of the most interesting things about ginger cats is that their orange colouring is linked to sex.
Scientists have long known that the orange trait is associated with the X chromosome. Male cats generally have one X chromosome, meaning a single copy of the orange variant can give them an entirely orange coat.
Female cats normally have two X chromosomes and generally need to inherit the orange variant on both to be fully orange. This helps explain why fully ginger females are considerably less common.
Scientists finally cracked the orange cat mystery
Despite knowing for more than a century that orange colouring was sex-linked, scientists did not know the precise genetic mechanism responsible.
That changed in 2025, when Stanford Medicine researchers identified a small genetic change associated with increased activity of a gene called ARHGAP36 in pigment cells. Their research helped explain how domestic cats get their orange colouring.
The discovery was particularly unusual because the mechanism appears to be different from those responsible for orange colouring in other mammals.
Does being ginger affect a cat’s personality?
Orange cats have developed an online reputation for being particularly mischievous, affectionate and chaotic, but their coat colour should not be treated as a personality test.
Stanford researchers said their observations suggest the genetic mutation is highly specific to pigment cells. There are also relatively few scientific studies examining whether ginger cats genuinely have distinctive personalities.
So while science can now tell us much more about why ginger cats look the way they do, their individual personalities remain exactly that: individual.
For Ginger Cat Appreciation Day, cat lovers can celebrate the orange companions already ruling their homes, while the occasion can also be an opportunity to support animal shelters and consider giving a cat in need a permanent home.
