Sir Graham James Hearne CBE (born 23 November 1937)is a British businessman who was chairman of Enterprise Oil from 1991 until 2002, having joined Enterprise as chief executive in 1984. He practiced as a solicitor at and at Fried, Frank, Harris, Shriver & Jacobson in New York. He served with the Industrial Reorganisation Congress before moving on to N M Rothschild & Sons, where he remained a non-executive director until June 2010. He was High Sheriff of Greater London in 1995-96.