Name
- A'Court, Edward Henry, Captain; afterwards A'Court-Repington; RN; MP1
- A'Court, William, 1st Baron Heytesbury, diplomat and politician, 1779-186012
- Abercromby, James, 1st Baron Dunfermline, barrister and politician, 1776-18581
- Abercromby, Ralph, 2nd Baron Dunfermline, diplomat, 1803-18681
- Abercromby, Robert, 5th Baronet1
- Abreu e Lima, Luiz Antonio, afterwards Conde da Carreira1
- Abu'l-Hasan, Mirza, afterwards Khan; Persian Ambassador to Great Britain, fl 1809-18191
- Acheson, Archibald, 3rd Earl of Gosford, politician, 1806-18641
- Achmet Hamid Bey, Reis-Effendi1
- Acland, Thomas Dyke, 10th Baronet, politician, 1787-18711
- Adair, Robert, Knight, politician and diplomat, 1763-18554
- Adam, Frederick, Knight, General, 1781-18534
- Adams, William Pitt, diplomatist1
- Addams, Jesse, DCL1
- Addington, Henry Unwin, civil servant, 1790-187011
- Adie, Charles, Reverend; DD; of Dundee1
- Adolphus Frederick, Duke of Cambridge, son of George III, 1774-18501
- Affleck, Andrew, Captain; 1st Aberdeen Militia1
- Agnew, Andrew, 7th Baronet, politician and promoter of Sabbatarian legislation, 1793-18491
- Alava, Miguel Ricardo, General; Spanish diplomatist3