Former Owner
- Herne Charterhouse1
- Hodgson & Co.1
- Homer D. Crotty1
- Horace de Landau1
- House of Bentivoglio1
- House of Liechtenstein1
- Howard Gray1
- Howel Wills1
- Howell Wills1
- Hugh Roberts1
- Ibrahim Sultan1
- Ibrāhīm al-Shakūrī1
- Ioannēs Grēgoropoulos1
- Irvine Masson1
- Isabel d'Oyembrugge de Duras1
- Ismāʻīl ibn al-Ḥājj ʻĪsá Jurayj al-Muhannā1
- Israel Gollancz1
- J. & J. Leighton1
- J. A. Shanley1
- J. Marstili1