Arthur Desmond Herne Plummer, Baron Plummer of St Marylebone, TD, DL, FRSA was a British Conservative Party politician in London and the longest serving Leader of the Greater London Council 1967–1973.
- Occupation
- politician, engineer
- Position held
- member of the House of Lords, member of London County Council
- Citizenship
- United Kingdom
- Born
- May 25, 1914
- Died
- October 2, 2009