Sir Peter John Gregson, FREng (born 3 November 1957 in Dunfermline, Scotland) is a British research engineer and Chair of the Henry Royce Institute. He was previously the Vice-Chancellor of Cranfield University from 2013-202 and President and Vice-Chancellor of Queen's University Belfast from 2004. Prior to that he was deputy Vice-Chancellor at Southampton University from 2000-2004.