Renard III, also spelled Reynald, Raynald, Rainard or Renaud (died c. 1230), was the acting lord (or count) of Dampierre-en-Astenois from 1202 until his death. He ruled the lordship during his father's absence on the Fourth Crusade and his long captivity. Renard died before his father and never succeeded to the lordship in full.