Sir Andrew William Dilnot, CBE (born 19 June 1960) is a British economist and broadcaster. He was formerly the Director of the Institute for Fiscal Studies from 1991 to 2002, and was Principal of St Hugh's College, Oxford between 2002 and 2012. As of September 2012 he is Warden of Nuffield College, Oxford. He took up post as Chair of the UK Statistics Authority in April 2012.