The Earl of Glencairn is a title in the Scottish peerage, first created in 1488. The title is associated with the historic region of Glencairn in Scotland. The Earls have played significant roles in Scottish history, particularly during the Reformation and the Wars of the Three Kingdoms. The current holder of the title is the Earl of Glencairn, who is a descendant of the original grantee, William Cunningham. The title has been passed down through generations, and the family has been influential in both local and national affairs throughout Scotland's history.