Former Owner
- Robert Stayner Holford1
- Robert Williams1
- Robert Wyer1
- Robert de Mol1
- Roger North, 2nd Baron North1
- Rosamond B. Loring2
- Ross Winans1
- Rowland G. Hazard1
- Rugby School1
- Rushton Mather Dorman2
- Rāma Śarmmaṇ1
- Rāmeśara1
- S. Ereilter1
- Saeed Nafisi1
- Saint Michael's Church, Ghent1
- Sakhārāmabhāṭṭa1
- Sam Fogg Rare Books & Manuscripts1
- Sam Schaefler3
- Samuel Allan1
- Samuel Allen3