Former Owner
- Howard Lesnick1
- Howel Wills1
- Howell Wills1
- Hubert Palmer Greville1
- Hucks Gibbs, 1st Baron Aldenham2
- Hudson Gurney1
- Hugh Daubeney1
- Hugh Roberts1
- Hugo Philipp Waldbott-Bassenheim2
- Hugo von Walderdorff1
- Huskan-ordi (Monastery in Muradiye, Turkey)1
- Huysburg1
- Hôtel Drouot1
- I. I. Middleton1
- I. I. Zur-Mühlen1
- Ibrāhīm al-Shakūrī1
- Ibrāhīmʹzādah Ismāʻīl Z̲ihnī1
- Ida M. Havens2
- Ignatius Molitor1
- Ilyās ibn Yūsuf Nāʻimat1