John Stewart, Earl of Carrick, Lord Kinclaven (died c. 1645) was a Scottish nobleman, the third son of Robert, Earl of Orkney, a bastard son of King James V.
Stewart was soon linked with the widow "Mistress Southwell". In November 1604 he fought Thomas Somerset, a son of the Earl of Worcester in the Balloon Court at Whitehall Palace. He was confined to his chamber and Somerset was sent to the Fleet Prison.[1]