Robert II of Dreux (1154 – 28 December, 1218), Count of Dreux and Braine, was the eldest surviving son of Robert I, Count of Dreux, and Agnes de Baudemont, countess of Braine, and a grandson of King Louis VI of France.
He participated in the Third Crusade, at the Siege of Acre and the Battle of Arsuf. He took part in the war in Normandy against the Angevin Kings between 1193 and 1204. Count Robert had seized the castle of Nonancourt from Richard I of England while he was imprisoned in Germany in late-1193. The count also participated in the Albigensian Crusade in 1210. In 1214 he fought alongside King Philip Augustus at the Battle of Bouvines.
His first marriage with Mahaut de Bourgogne (1150–1192) in 1178 ended with separation in 1181 and produced no children. His second marriage to Yolande de Coucy (1164–1222) produced several children, the sons including Robert III (c. 1185–1234), Count of Dreux and Braine, Peter (c. 1190–1250), Duke of Brittany, Henry of Dreux (c. 1193–1240) Archbishop of Reims and John of Dreux (c. 1198–1239), Count of Vienne and Mâcon.