Former Owner
- Schenck'sche Fide-Kommiss-Bibliothek1
- Scott Gwara1
- Scroop Egerton, 1st Duke of Bridgewater1
- Sebastienne Boscher1
- Seitenstetten Abbey2
- Sewell Thomas1
- Seymour Stocker Kirkup2
- Seʻadyah ben Yehudah Altsaʻadi1
- Sharīf Khān1
- Sidney Graves Hamilton1
- Sigmund Ortel1
- Sigurd Wandel9
- Silas W. Howland2
- Simon Gratz1
- Sion Segre Amar1
- Sir Anthony Cope, 13th Baronet1
- Sir Edward Dering, 1st Baronet1
- Sir Francis Powell, 1st Baronet1
- Sir George Holford1
- Sir Godfrey Webster1