Former Owner
- P. Desq1
- Paolino Gianfilippi1
- Paolo Giovio1
- ParvaṇIkara Govindabhaṭṭaputra1
- Paul Riant14
- Pauline Fore Moffitt1
- Paulus de Graecus1
- Paurāṇika, Rāmacandrabhaṭṭa1
- Perceval Lucas1
- Peter Ludwig1
- Philip Augustus Hanrott1
- Philip Hofer1
- Philippe II de Croÿ1
- Phillip J. Pirages Fine Books & Manuscripts3
- Phoebe Hearst1
- Pierleone Leoni1
- Piero Ginori Conti2
- Pierre Pithou1
- Pierre Tassel1
- Pietro Antonio Maffei1