Former Owner
- Ibrāhīm al-Shakūrī1
- Ioannēs Grēgoropoulos1
- Isabel d'Oyembrugge de Duras1
- Ismāʻīl ibn al-Ḥājj ʻĪsá Jurayj al-Muhannā1
- Israel Gollancz1
- J. & J. Leighton1
- J. A. Shanley1
- J. Marstili1
- J. Meade Falkner1
- J. Palmer1
- Jacqueline du Pré1
- Jacques Rosenthal1
- James K. Moffitt1
- James Lyell1
- James Tanis1
- James Turle1
- James Vallentin1
- James West1
- Jean E. Austin1
- Jean Felix Dénie1