The Cat Sìth is a fairy creature from Celtic mythology, said to resemble a large black cat with a white spot on its chest. Legend has it that the spectral cat haunts the Scottish Highlands. The legends surrounding this creature are more common in Scottish folklore, but a few occur in Irish. Some common folklore suggested that the Cat Sìth was not a fairy, but a witch that could transform into a cat nine times. The Cat Sìth may have been inspired by the Scottish wildcat itself. It is possible that the legends of the Cat Sìth were inspired by Kellas cats, which are a distinctive hybrid between Scottish wildcats and domestic cats only found in Scotland (the Scottish wildcat is a subspecies of the European wildcat, which is absent from elsewhere in the British Isles).