Former Owner
- Nicolaus de Monte Murro1
- Norman H. Strouse1
- Norza, Leon1
- Oettingen-Wallerstein library1
- Okar, Baganbhaṭṭa1
- Otto Jahn1
- Otto Orren Fisher1
- Owen D. Young1
- P. Desq1
- Paolino Gianfilippi1
- Paolo Giovio1
- ParvaṇIkara Govindabhaṭṭaputra1
- Pauline Fore Moffitt1
- Paulus de Graecus1
- Paurāṇika, Rāmacandrabhaṭṭa1
- Perceval Lucas1
- Peter Ludwig1
- Philip Augustus Hanrott1
- Philip Hofer1
- Philippe II de Croÿ1