Domestic Breeds:
* Siamese: Known for their striking blue almond-shaped eyes and pointed coloration.
* Siberian: Large, fluffy breed with a thick, water-resistant coat.
* Sphynx: Hairless breed with wrinkled skin and big ears.
* Scottish Fold: Characterized by their unique folded ears.
* Snowshoe: A beautiful breed with white "mittens" and "booties".
* Selkirk Rex: Curly-coated breed with a soft, plush appearance.
Other Breeds:
* Savannah: Large, spotted breed with a wildcat appearance.
* Singapura: Small, sleek breed with a distinctive ticked coat.
* Somali: Long-haired version of the Abyssinian breed with a distinctive "ticked" coat.
* Sokoke: Wild-looking breed with a spotted coat and bright green eyes.
This is not an exhaustive list, but it includes some of the most popular and interesting cat breeds that start with the letter "S".