Former Owner
- Saʻīd ibn al-Shaykh Aḥmad1
- Schenck'sche Fide-Kommiss-Bibliothek1
- Schloss Nordkirchen1
- Schwohe, Johann Christian1
- Schøyen Collection1
- Scott Gwara4
- Scroop Egerton, 1st Duke of Bridgewater1
- Sebastiano Calvi1
- Sebastianus Severus1
- Sebastienne Boscher1
- Sebolt1
- Seitenstetten Abbey2
- Selim II1
- Sephan de Perusio1
- Servite Order1
- Sewell Thomas1
- Seymour Stocker Kirkup3
- Seymour de Ricci1
- Seʻadyah ben Hilel ha-Leṿi1
- Seʻadyah ben Yehudah Altsaʻadi1