Jacques A. Nasser AO (Arabic: جاك نصر);(born 12 December 1947) is a Lebanese-born Australian businessman, who currently serves as Chairman of the Board of BHP Billiton. After serving as a Director of BHP Billiton Limited and BHP Billiton Plc since 2006, Nasser was appointed Chairman of both in March 2010, succeeding Don Argus.