Former Owner
- R. Tolentino1
- RR Donnelley1
- Rafael Floranes1
- Rafael Gomes1
- Raffaello de’ Medici1
- Raitenhaslach Cistercian Abbey1
- Ralph Ewart Ford1
- Ralph Thoresby1
- Ralph Verney, 1st Earl Verney1
- Ramsau Monastery1
- Ramón de Mesonero Romanos1
- Raoul Léonor Lignerolles1
- Raphael Nathan Nata Rabinowitz1
- Raphael de Mediolano1
- Raul A. Villagran1
- Reginald Cholmondeley1
- Reiss & Son1
- Rendell1
- Renzo Rizzi libri antichi1
- René Antoine Thoué1