Former Owner
- Robert Garrett1
- Robert Mignan1
- Robert Rossiter Hutton1
- Robert Samuel Turner1
- Roy G. Fitzgerald1
- Royal Monastery of Saint Mary of Guadalupe1
- Rudolf Busch1
- Rudolphus Rasser Donatus1
- Rājārāmabhaṭṭa1
- Rāma Śarmmaṇ1
- Rāmeśara1
- Saeed Nafisi1
- Sahastrabudhi1
- Said Ben Yahya1
- Sakhārāmabhāṭṭa1
- Salem Ben Och Chahri1
- Samuel Addington1
- Samuel Butler1
- Samuel David Luzzatto1
- Samuel H. Putnam1