The Korat cat (Thai: โคราช, มาเลศ, สีสวาด, RTGS: Khorat, Malet, Si sawat) is a silver-tipped blue-grey, short-haired breed of domestic cat with a small to medium build and a low percentage of body fat.

It is an intelligent and playful[1] active cat that forms strong bonds with people and is very vocal, with a sound different from other breeds.

Among the Korat's distinguishing characteristics are its heart-shaped head, its large green eyes.

[2] Traditionally, they are given in pairs to newlyweds or people who are highly esteemed, for good luck.

[1] The probable first allusion to the breed is in the Thai Tamra Maew (The Cat-Book Poems), authored between 1350 and 1767 CE and now in the National Library of Thailand.

One early import, "Dwina", owned by Russian Blue breeder Mrs. Constance Carew-Cox and mentioned in Frances Simpson's The Book of the Cat (1903), reputedly produced a large number of "Siamese" kittens; the other, Mrs. B. Spearman's Blue Siamese male, "Nam Noi", was disqualified as a Siamese, but accepted in the Russian or Any Other Blue class in which he placed first (WR Hawkins, "Around the Pens", July 1896).

This cat has a single coat that is short, with roots of a lighter silver blue.

The hair shaft colour increases to deeper blue and the tips are silver, especially on the muzzle and toes.

A young male lilac was then born to another pair, also in the U.K., allowing more crossings without inbreeding too closely.