Former Owner
- Rudolf Graupner1
- Rudolf Hofmeister1
- Rudolph B. Gottfried1
- Rudolph Feilding, 8th Earl of Denbigh1
- Rugby School1
- Rui Garcia1
- Ruth Cheney Streeter1
- S. Ereilter1
- S. S. Conant1
- Sabin1
- Sabina Sopheija Behren1
- Saint Michael's Church, Ghent1
- Saint Mihiel Abbey1
- Saint-Amand Abbey1
- Saint-Riquier1
- Saluti, Tomasso, active 20th century1
- Sam Fogg Rare Books & Manuscripts1
- Samuel Dennis1
- Samuel Eliot1
- Samuel Frederick Houston1