The Korat (Thai: โคราช, มาเลศ, สีสวาด, rtgs: Khorat, Malet, Si sawat) is a slate blue-grey, short-haired breed of domestic cat with a small to medium build and a low percentage of body fat. Its body is semi-cobby, and unusually heavy for its size. It is an intelligent and playful active cat that forms strong bonds with people. Among the Korats' distinguishing characteristics is its heart-shaped head and large green eyes.
The Korat is a natural breed, and one of the oldest stable cat breeds. Originating in Phimai Thailand, it is named after its province of origin, Nakhon Ratchasima Province (typically called "Korat" by the Thai people). In Thailand, the breed is known as Si sawat, meaning "colour of the sawat seed". The Korat is known colloquially as the "good luck cat". Traditionally, they are given in pairs to newlyweds or people who are highly esteemed, for good luck. Until recently, Korats were not sold, but only given as gifts.