The Cairn Terrier is a terrier breed originating in the Scottish Highlands and recognised as one of Scotland's earliest working dogs. The name "Cairn Terrier" was a compromise suggestion when the breed was brought to official shows in the United Kingdom in 1909, initially under the name "Short-haired Skye terrier". This name was not accepted by the Kennel Club when faced with opposition from breeders of the Skye Terrier. The alternative name Cairn Terrier was adopted.

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