Former Owner
- Nasir al-Din al-Tusi1
- Naulī Viṭhala1
- Naʻīm1
- Nicolaus Pol1
- Nilorudra Prabhugupta1
- Norman H. Strouse1
- Norman Winestine1
- Norza, Leon1
- Noël Pinelli1
- Nur al-Din Arslan Shah I1
- Nārāyaṇa Gālane1
- Nīlakaṇṭha Tanūja1
- Oettingen-Wallerstein library1
- Offley Bohun Stovin Fairless Shore1
- Okar, Baganbhaṭṭa1
- Oswald Carl Friedrich von Seilern und Aspang1
- Otto Jahn1
- Otto Walter Fuhrmann1
- Padmākarabhaṭṭa1
- Paland, Irmengarde von1