Name
- Commerell, Frederic, Merchant1
- Condé, François1
- Cook, Edward, Captain; RN1
- Cooper, Grey, politician, c 1726-18011
- Corry, Isaac, Chancellor of the Exchequer, Ireland1
- Cottrell, Stephen, Clerk to the Council1
- Craufurd, George1
- Cuningham, James, General1
- Cuninghame, Robert, 1st Baron Rossmore, Commander-in-Chief in Ireland1
- Dalrymple, John, 4th Baronet of Cousland, formerly Dalrymple; lawyer and historian, 1726-18101
- Delaval, Daniel, diplomat and secretary to Sir Joseph Yorke, fl 1747-17751
- Dempster, George, correspondent of William Eden, fl 17721
- Digby, S, correspondent of William Eden, fl 17901
- Dillon, Arthur Richard, Archbishop of Toulouse, and Archbishop of Narbonne, 1721-18061
- Dirom, Alexander, army officer, 1757-18301
- Douglas, Catharine Anne, wife of Sylvester, Baron Glenbervie and daughter of Frederick North, 2nd Earl of Guilford, 1760-18171
- Duchy of Brabant1
- Ducrest, -, correspondent of William Eden, 1st Baron Auckland, fl 17931
- Dunne, O, correspondent of William Eden, fl 17881
- Durno, James, correspondent of William Eden, 1st Baron Auckland, fl 17911