Name
- Souza-Holstein, Pedro, Conde and (1834) Duque de Palmella, Portuguese statesman1
- Spencer-Churchill, George, Marquess of Blandford, 6th Duke of Marlborough1
- Spotswood, Theobald, coast officer at Ballinskelligs1
- Sprott, Richard1
- St. Clair, Charles, Baron Sinclair1
- Stafford, John, of Add MS 385791
- Staines, Elizabeth, widow of Sir W Staines1
- Stanislas Augustus, King of Poland1
- Stapleton, Augustus Granville, civil servant, writer, 1800-18801
- Steele, Thomas, Secretary of the Treasury (1783-1791)1
- Stephen, James, MP, Master in Chancery1
- Stinchcombe, Nicholas1
- Stockdale, John, of Add MS 385711
- Stonhouse, John, 3rd Baronet1
- Stopford, James George, Viscount Stopford, 3rd Earl of Courtown (1810)1
- Stuart, Charles, Baron Stuart de Rothesay, diplomatist, 1779-18451
- Stuart, George Francis, self-styled Count Stuarton1
- Stuart, John, 3rd Earl of Bute, Prime Minister, 25 May 1713-10 Mar 17921
- Stuart, Simeon, MP, 3rd Baronet1
- Sumner, Charles Richard, Bishop of Winchester1