Henry III, Lord of Waldeck

Henry III of Waldeck (c. 1225–1267), eldest son of Count Adolf I, co-ruled Waldeck in his father's lifetime. With his father he backed Landgrave Henry I of Hesse against the bishop of Paderborn and Corvey Abbey in their dispute over the north Hessian borderlands.

He married Mechtild of Cuyk-Arnsberg, heiress of Wewelsburg. He died in 1267, three years before his father; his sons Adolf II and Otto I succeeded as counts.