Robert de Brus (July 1243 – soon before 4 March 1304), 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.