Robert de Brus, 6th Lord of Annandale, jure uxoris Earl of Carrick (1252–1292), Lord of Hartness, Writtle and Hatfield Broad Oak, was a cross-border lord, and participant of the Second Barons' War, Ninth Crusade, Welsh Wars, and First War of Scottish Independence, as well as father to the future king of Scotland Robert the Bruce.

Earl of Carrick is the title applied to the ruler of Carrick, subsequently part of the Peerage of Scotland. The position came to be strongly associated with the Scottish crown when Robert the Bruce, who had inherited it from his maternal kin, became King of Scots in the early 14th century. Since the 15th century, the title of Earl of Carrick has automatically been held by the heir apparent to the throne, thus the current holder of the title is Prince William, Duke of Rothesay.