Former Owner
- Rowland G. Hazard1
- Rowland Hazard1
- Rowland Oseley1
- Roy G. Fitzgerald1
- Royal Library of Belgium1
- Royal Monastery of Saint Mary of Guadalupe1
- Royaumont Abbey1
- 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