Guy Beresford Kerr "Griff" Griffiths (6 June 1915 – 12 July 1999) was a Royal Marine pilot. He served as a pilot during the Second World War and gained notoriety as a prisoner of war for using his artistic skills to forge documents and provide misinformation by feeding Nazi intelligence with fake sketches of British aircraft. After the war he continued to fly various types of aircraft as a test pilot and has the distinction of being the first Royal Marines officer to fly a helicopter.