Former Owner
- Ilyās ibn Yūsuf Nāʻimat1
- Institut für Orientalistik (Universität Wien)1
- Ioannēs Grēgoropoulos1
- Iodocus Grebel1
- Irvine Masson1
- Isabel de Bellusseau1
- Isabella d'Este1
- Isabelle de Lévis1
- Ismāʻīl ibn Pīr Muḥammad Sarūrī1
- Ismāʻīl ibn al-Ḥājj ʻĪsá Jurayj al-Muhannā1
- Israel Gollancz1
- J. A. Dortmond1
- J. A. J. Barclay1
- J. A. Shanley1
- J. M. C. Armbruster (Firm)1
- J. Marstili1
- J. Palmer1
- J. T. Payne1
- J. Thomson1
- J. de Charron de Liancourt1