Rob Roy (1922–1928) was a white male collie owned by Calvin Coolidge. Coolidge's favorite pet, he was acquired by Grace Coolidge in 1922 after she became enamored with collies, having seen one of the breed perform in a circus. He later lived with the family in the White House. Roy Roy was immortalized in a Howard Chandler Christy portrait of Grace Coolidge. He died in 1928 after a short illness.