Top 5 Biggest Cat Breeds (& What Makes Them So Large)

If you love cats with a big presence and even bigger personalities, large cat breeds are hard to beat. Some domestic cats can grow to over 20 pounds and more than 3 feet long, making them feel almost like having a miniature wildcat in your home.

Below are the five biggest domestic cat breeds, ranked by their typical size and weight.

1. Maine Coon

Maine Coons are widely considered the largest domestic cat breed. Known for their thick coats, tufted ears, and bushy tails, these gentle giants are incredibly affectionate.

Size

• Weight: 10–25 pounds
• Length: Up to 40 inches

Personality

• Friendly and social
• Often described as “dog-like”
• Very intelligent and playful

Despite their massive size, Maine Coons are famously gentle and get along well with families, dogs, and other cats.

2. Savannah

The Savannah cat is a hybrid breed created by crossing domestic cats with the African serval. Their long legs and tall bodies make them appear even larger than their weight suggests.

Size

• Weight: 12–25 pounds
• Height: Up to 17 inches tall

Personality

• Extremely energetic
• Highly intelligent
• Often enjoys leash walking and interactive play

Savannahs are one of the tallest domestic cat breeds and require lots of stimulation.

3. Norwegian Forest Cat

Originally from Scandinavia, the Norwegian Forest Cat developed its large size and thick coat to survive cold climates.

Size

• Weight: 12–20 pounds
• Length: Up to 36 inches

Personality

• Calm and independent
• Very loyal to their family
• Excellent climbers

Their muscular bodies and dense coats make them appear even larger than they actually are.

4. Ragdoll

Ragdolls are famous for their relaxed temperament and tendency to go limp when picked up, which is how they got their name.

Size

• Weight: 10–20 pounds
• Length: Up to 40 inches

Personality

• Extremely gentle
• Loves attention and cuddling
• Often follows their owner around the house

Ragdolls are one of the largest and most affectionate cat breeds, making them great companions.

5. Siberian

The Siberian cat is another large breed developed for harsh climates. Their powerful build and thick triple coat help them withstand cold weather.

Size

• Weight: 10–20 pounds
• Length: Around 35 inches

Personality

• Playful and agile
• Very loyal
• Surprisingly good jumpers

Despite their size, Siberians are highly athletic cats that enjoy climbing and exploring.

Why Some Cat Breeds Grow So Large

Large cat breeds often developed in cold climates or through selective breeding that favored stronger, larger bodies. Bigger size helped them survive harsh environments and hunt effectively.

Many of the biggest breeds also share traits like:

• Thick coats for insulation
• Muscular bodies for climbing and hunting
• High intelligence and activity levels

Frequently Asked Questions

What is the largest domestic cat breed?

The Maine Coon is generally considered the largest domestic cat breed, with some males exceeding 25 pounds and reaching over 40 inches in length.

Which cat breed is the tallest?

The Savannah cat is typically the tallest domestic cat breed, often standing up to 17 inches tall at the shoulder.

Do big cat breeds need more space?

Large cat breeds usually benefit from more vertical space, such as cat trees and shelves, because many are strong climbers.

Are large cat breeds more expensive?

Yes. Breeds like Savannah cats or Maine Coons can cost anywhere from $1,000 to $20,000 depending on pedigree and generation.

Are big cats good family pets?

Many large breeds—especially Maine Coons, Ragdolls, and Siberians—are known for being gentle, affectionate, and great with families.