Sir David Calvert-Smith, KC (born 6 April 1945), styled The Hon. Mr Justice Calvert-Smith, is a retired British judge. He was Director of Public Prosecutions of England and Wales from 1998 to 2003 and then a High Court judge. Educated at Eton College and King's College, Cambridge, he was called to the bar at the Middle Temple in 1969 and became a queen's counsel in 1997. He was knighted in 2002 and sat as a High Court judge from 2005 to 2012. Mr Justice Calvert-Smith is an honorary member of QEB Hollis Whiteman.