Former Owner
- Raphael Nathan Nata Rabinowitz1
- Richard Gough1
- Richard James Horatio Gottheil1
- Richard McKeon1
- Richard Priestley1
- Robert Brodhead Honeyman1
- Robert Churchill1
- Robert Dallas1
- Robert Dechert1
- Robert Garrett1
- Robert Ranshaw1
- Robert de Mol1
- Roger North, 2nd Baron North1
- Rāma Śarmmaṇ1
- Rāmeśara1
- Saeed Nafisi1
- Sakhārāmabhāṭṭa1
- Samuel Allan1
- Samuel H. Putnam1
- San Michele in Isola1