The first time the Cairn terrier was presented publicly was in 1909. The breed did not really gain popularity until the 1930's, even though it has been around since the 1500's.They are one of the original terriers from Scotland, and have some influence on the Skye terrier, the West Highland White and the Scottish terriers. The name "Cairn" is the term used to describe grave markers or farmland borders made by marking them with a pile of stones. Small rodents would build homes in the stone and they were used to chase them out. This dog is now bred for companionship." Toto" of the "Wizard of Oz" is probably the most famous Cairn terrier.

They are very talented at being able to do tricks. The can also be trained for a competitively level of obedience. They are very agile making them good for tracking and hunting.

The AKC officially recognized the Cairn Terrie as a breed in 1913; it was entered into the Terrier Group. The dog must be between 10-13 inches in height and the male dogs will weigh 14-18 pounds with the females weighing between 13-17 pounds. The length of the dog from the front part of the chest to the hindquarters should be 14