Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Cat Sìth: The “King of Cats” From Celtic Mythology

Share

close up of a black cat with amber eyes

If you enjoy Celtic mythology and are a fan of cats, you should be interested in the Cat Sìth. This magical cat is found in both Scottish and Irish folklore and is thought to be the basis of a few of the associations and superstitions that Western society has toward cats, especially black cats.

Several stories revolve around the Cat Sìth, so if you would like to learn more about this “King of Cats,” read on!

divider 3 paws

Is It Cat Sìth or Cait Sidhe?

It’s both! This “fairy cat” appears in Irish mythology as the Cait Sidhe and in Scottish mythology as the Cat Sìth (pronounced cot-SHEE in both languages). There are stories about this fairy creature in British and Irish folklore, but it has stronger ties in the Scottish Highlands.

Sìth and Sidhe loosely translate to “hill” or “mound,” which is where the fairies dwell. So, the Cat Sìth is very much a fairy cat, though not in a sweet, Tinkerbell kind of way, but rather, as a dark spirit.

Cat-sith
Image Credit: John D. Batten, Wikimedia Commons Public Domain

What Exactly Is the Cat Sìth?

The Cat Sìth is a cat that is said to be large—about the size of a dog—and walks on their hind legs. But if a human is around, the Cat Sìth will walk on all fours (like a regular cat). They’re essentially a fairy creature in disguise.

They’re commonly seen as a black cat with a white patch on their chest. If a person is around, they not only walk on all fours but also can appear with an arched back and bristled fur.

The Cat Sìth as a Witch

Other tales speak of the Cat Sìth as a witch in disguise. The stories say that the witch can transform into a black cat—but only nine times. It was believed that if the witch transformed into a cat more than nine times, she would remain a cat.

These stories are thought to be the origin of the “cat has nine lives” proverb, but no one really knows for certain. It might also be partly responsible for our association with witches and black cats.

black abyssinian cat
Image Credit: Dimdok, Shutterstock

The Cat Sìth on Samhain

Samhain (pronounced SOW-en) is the ancient Celtic pagan festival that we know today as Halloween. This is where we get many of our Halloween traditions from.

On Samhain, the Cat Sìth would go to farms to steal milk from the cows and cast a curse so the cows would not be able to produce milk. People in Scotland would then leave a saucer of milk out for the Cat Sìth on the doorstep. The Cat Sìth would drink the milk and leave blessings and a gift.

It was a common practice in Scotland and Ireland to leave out food and milk for the fairies.

The Soul-Stealing Cat Sìth

Another belief finds the Cat Sìth stealing souls. They would wander in areas where there were burials so they could grab souls before they passed from the living to the land of the dead.

When someone would die, the Scottish would hold a watch called the Fèill Fhadalach (Late Wake) near the body before burial. This entailed music, riddles, and games of wrestling and leaping night and day until the burial to distract the Cat Sìth.

They would additionally extinguish the fires because, just like a regular cat, the Cat Sìth preferred warmth.

Black Burmese cat on black background
Image Credit: izmargad, Shutterstock

The King of the Cats

Now we get to the “King of the Cats,” though this is from a British folktale rather than a Scottish or Irish one. The story goes something like this:

The sexton’s wife and her black cat, Old Tom, were sitting by the fire, waiting for her husband to come home. He rushed in later than expected, hollering, “Who’s Tommy Tildrum?” and he told the story of how he saw nine black cats with white marks on their chests. The cats were carrying a coffin with a small golden crown laid on the top, and one of the cats spoke to the man, “Tell Tom Tildrum that Tim Toldrum’s dead.”

Suddenly, the cat, Old Tom, exclaimed, “What?! Old Tim dead! Then I’m the King o’ the Cats!” He dashed up the chimney and was never seen again!

Other Cats in Mythology

You can find several mythologies that feature cats:

  • Bakeneko: A monster cat from Japanese legend that starts as a regular house cat, gradually grows to human size, and walks on hind legs.
  • Bastet: The Egyptian goddess of the home, fertility, childbirth, and cats.
  • Cactus Cat: A mythical cat from the American Southwest that resembles a bobcat with thorn-like fur.
  • Cath Palug: A monster from Welsh and French mythology that makes an appearance in the King Arthur legends.
  • Cha Kla: A monster cat from Thailand with black fur and blood-red eyes.
  • Dawon: A fierce tigress from Hindu mythology that was used for battle.
  • Hombre Gato: Also known as Catman, hails from South America (basically, half cat and half man).
  • Lyncus: A human king that was turned into a lynx in Greek mythology.
  • Mafdet: A deity from Egypt who was the Goddess of Justice, Judgment, and Execution, said to look like a Savannah cat or a cheetah.
  • Matagot: Spirits in southern France, usually in the form of black cats.
  • Sekhmet: Egyptian goddess of war and destruction who resembles a lion.
  • Wampus Cat: Mainly from Cherokee mythology, sometimes evil and sometimes comical.
Black cat with orange cat on black background
Image By: Shrutisharma618, Shutterstock

divider 3 paws

Conclusion

The Cat Sìth is an interesting mythological spirit from Celtic stories. They are also possibly the origin of a few superstitions, like cats having nine lives, black cats and witches, and bad luck. The Cat Sìth or Sidhe has made modern appearances in movies, books, and video games (most notably in the Final Fantasy series).

Cats are fascinating creatures that have inspired many stories and beliefs, though not always good ones. Still, when a cat is around, you know that you’re in for a bit of entertainment!

See also:


Featured Image Credit: Virvoreanu-Laurentiu, Pixabay

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Ask Dr. Paola – Help! My Male Cat Gets Into Fights! (March 9, 2026)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

Why Your Cat’s Poop Smells Like a Biohazard

Nobody enjoys litter box duty, but sometimes it gets unbearable. The smell hits you from across the room. You’re scooping faster, lighting candles,...

RIP Your Furniture? Not With This Guide to Cat Scratch Damage Control

Your couch looks like it survived a minor apocalypse. The curtains have mysterious vertical shreds. That new rug you splurged on is already...

Celebrating 15 Years as the Most Popular Resident of No. 10 Downing Street

For almost 300 years, a rather unassuming Georgian building of black bricks with a shiny black door has been the official residence and...

More related

Back From the Brink – Scottish Wildcats Getting a Second Chance

With conservation and biodiversity issues falling further and further down the list of political priorities, the idea of animal species coming back from...

Munchkin British Shorthair Cat Mix: Info, Pictures, Temperament & More

The Munchkin British Shorthair mixed breed creates a feline with short legs with many British Shorthair traits. Generally, these cats almost always have...

Do Scottish Fold Cats Get Along With Dogs? Facts & FAQ

Scottish Fold cats are sweet, mellow kitties with ticked ears and loving personalities. They tend to be social, friendly, and calm. These laid-back...

10 Best Cat Foods Made in the USA in 2026 – Reviews & Top Picks

Choosing high-quality cat food is a hugely important decision when it comes to the health of your beloved pet. You might have been...

Keep reading

My Cat Is Bored but Won’t Play, What’s Wrong? 6 Common Reasons

Most cats play throughout their life, though they are most playful in their kitten years.Under human care, cats don’t need to hunt or do many other things to aid in their survival. Therefore, they often have a lot of pent-up...

sad, bored or sick cat

Can Cats Be Vegan? Vet-Reviewed Facts

People choose to be vegan for various reasons, including a desire to reduce their carbon footprint, a need to improve their health, and everything in between. As an autonomous person, you can choose to do anything that you wish regarding...

cat looking at bowl of raw veggies

How to Dry a Cat After a Bath: Vet-Approved Step-by-Step Guide

You rarely find a cat that will gladly accept having a bath without putting up a fight. If your cat is as apprehensive as most others, you may want to make sure you’re doing everything correctly to minimize the agony...

gray cat newly bathe

6 Best Cat Calming Treats in 2026 – Reviews & Top Picks

Sometimes our felines can be nervous Nellies, while others can be downright aggressive. Regardless of why you need calming supplements for your cats, you might not be too keen on the idea of pills. It can be tricky with cats...

cat_pasja1000, Pixabay

Can Cats Eat Beef Jerky? Vet-Approved Health and Nutrition Advice

Jerky has been around in human diets for millennia. Civilizations spanning the globe all have methods and recipes for drying and curing meat. It’s a great way to ensure that meat doesn’t spoil and lasts for extended periods. While jerky...

Can Cats Eat Beef Jerky

Do I Need to Expose My Cat to Sunlight for Them To Stay Healthy?

You’ve probably read more than a few stories about the importance of getting enough vitamin D, “the sunshine” vitamin. It plays a critical role in muscle and bone development, nervous system functions, and immune health for humans. But do domestic...

American Polydactyl cat walking outside

Fever Coat in Kittens: What Is It? Vet Reviewed Science & Facts (With Pictures)

Do you have a kitten that seems to have mysteriously changed colors? If so, they may have a fever coat. Although “fever coat” may sound scary, it is nothing to worry about and does not harm your kitten. Although it’s...

gray kitten plays on floor

Does Heat Kill Fleas on Cats? Here’s What Science Says

If your cat has fleas, they can be a nuisance and are incredibly difficult to get rid of without flea treatments. But these treatments can be expensive, so many pet owners are left wondering how to treat fleas on their...

Cat with fleas

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.