William Kane Reilly (born January 26, 1940) was Administrator of the Environmental Protection Agency under President George H. W. Bush. He has served as president of World Wildlife Fund, as a founder or advisor to several business ventures, and on many boards of directors. In 2010, he was appointed by President Barack Obama co-chair of the National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling to investigate the oil spill in the Gulf of Mexico.