Name
- Puente, Philip Ruiz, Captain1
- Reden, D-, Hanoverian Adjutant-General1
- Rosencreutz, Johann Baptist, envoy, fl 1763-17921
- Rubaleava, Ferdinando, Captain1
- Russell, John, 4th Duke of Bedford1
- Saumaise, Charlotte1
- Saussure1
- Scott, Elizabeth, wife of Henry, 3rd Duke of Buccleuch1
- Seymour-Conway, Henry, General, Secretary of State1
- Sneyd, Jeremy1
- St Paul, Horace, Sec of Embassy in Paris1
- St. Germain1
- St. Germain, Claude Louis, Comte, French Minister of War1
- Staley, Andrew1
- Stanely, Elizabeth, wife of Edward, 12th Earl of Derby1
- Stanhope, Philip Dormer, 4th Earl of Chesterfield1
- Stanhope, Philip, natural son of the 4th Earl of Chesterfield; Envoy at Dresden1
- Stanislas Augustus, King of Poland1
- Strange, John, British Resident at Venice (1773-1778)1
- Thynne, Thomas, 1st Marquess of Bath, Secretary of State, 1734-17961