Aggressive Cats 2026: Here are the 11 breeds of adorable cat most likely to show signs of aggression like scratching and biting - including the loving Siamese 😺

These cats can be challenge to keep calm - and owners would be wise to keep some plasters handy.

Humans are thought to have kept cats as pets for over 10,000 years, dating back to the first domesticated felines that were evolved from African wildcats.

They are now firmly established as the world’s second most popular pet, just behind dogs when it comes to the animals we welcome in to our homes - and our hearts.

There are curently more than 10 million feline friends in households across Britain, with the number continuing to rise.

There are a huge range of types of cat to choose from - according to The International Cat Association there are 73 ‘standardised breeds’, along with a bewildering number of crosses, including the ever-popular ‘Moggy’ (a cat with no pedigree or known lineage).

One thing to take into account is that different breeds of pet cat tend to be predisposed to having very different typical characteristics (although all cats are individuals so can prove to be exceptions to the rule).

Cats used to be wild animals who required to display aggression in order to survive and, while some breeds are now so domesticated as to be almost completely placid, others are closer to their hunting forebears.

Meanwhile other cats are prone to jealousy or being territorial which can also lead to similarly aggressive behaviour.

Here are the 11 most aggressive breeds of pet cat.

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1. Siamese

Siamese cats just love their owners a little too much, meaning that if you stop paying them the required amount of attention they may become territorial, jealous, and irritable. This can lead to biting and scratching. They're not massive fans of strangers either, and won't be afraid of displaying their displeasure. | Canva/Getty Images

2. Bengal

The Bengal Cat was created by crossing domesticated cats with the Asian Leopart Cat and still posesses any of the latter's wild nature - so much so that ownership is controlled in many countries. They have a powerful hunting instinct and if they get bored and lack suitable stimulation can lash out with rough play and biting. | Canva/Getty Images

3. Savannah

Savannahs are another cat only recently bred from wild cats (in this case the Serval in the late 20th century) and who aren't as naturally domesticated as other breeds. Their strength, jumping ability, and strong prey drive can produce challenging behaviour, so early socialisation is essentail from kittenhood to try and minimise aggression. | AFP via Getty Images

4. Egyptian Mau

First introduced to Europe by the Italian royal family in the 1950s, Egyptian Maus are extremely wary of unfamiliar people. If they get frightened they often react defensively with scratching and biting. Overstimulation of this breed can also lead to aggression. Handle with care. | AFP via Getty Images