Sir Nigel Elton Sheinwald GCMG (born 26 June 1953) is a former senior British diplomat, who served as Ambassador to the United States of America between October 2007 and January 2012. He was appointed "Special Envoy on intelligence and law enforcement data sharing" in September 2014.Since shortly after he retired from the diplomatic service in 2012 he has been a non-executive director of Royal Dutch Shell.