Former Owner
- Stella, Giovanni Pietro, 16th century1
- Stephan Rosinus1
- Stephen Penny1
- Stevens Henry Newton1
- Süleyman Çelebi1
- Sītārāma1
- Theodore Parker1
- Theresa Enriquez1
- Thomas Bernardinus Braccioli1
- Thomas FitzRoy Phillipps Fenwick1
- Thomas Gage1
- Thomas Gibson-Carmichael, 1st Baron Carmichael1
- Thomas Posthumous Hoby1
- Thomas Rawlinson1
- Tongerlo Abbey1
- Typographic Library and Museum1
- United States Naval Academy1
- Vaijanāthabhaṭṭa Sāmaka1
- Vicente Riva Palacio1
- Vittorio Forti1