Sir Richard Harries Davies KCVO CBE (28 June 1916 – 29 January 1995) was a member of the Household of the Duke of Edinburgh of the United Kingdom.
He graduated with a BSc, and was a Chartered Engineer (CEng) and a FIEE.
He was a member of the Scientific Civil Service 1939-1946, and was in the British Air Commission, Washington, DC, 1944-1945.
In 1977 he joined the Household of the Duke of Edinburgh of His Royal Highness The Duke of Edinburgh as Assistant Private Secretary.
He was acting Private Secretary and Treasurer following the death of Lord Rupert Nevill in 1982, and retired in 1984, when he became an Extra Equerry.