Name
- Hallam, Henry, historian1
- Hawes, Benjamin, KCB1
- Head, Edmund Walker, 8th Baronet, Governor-General of Canada1
- Hill, Rowland, KCB, postal reformer1
- Hill, Thomas Wright, schoolmaster1
- Hobhouse, John Cam, 2nd Baronet, Baron Broughton, 1786-18691
- Hodson, William, of Add MS 371881
- Humboldt, Friedrich Heinrich Alexander, naturalist and explorer, 1769-18591
- Hume, James Deacon, of Add MS 371881
- Hume, Joseph, radical and politician, 1777-18551
- Hussey, Thomas John, Reverend; astronomer1
- Ivory, James, mathematician1
- Jarvis, C- G-, mechanic1
- Jones, Leslie Grove, Colonel1
- Jones, Richard, Reverend; economist1
- Josephy, Wartan, Hungarian astronomer1
- Lamb, William, 2nd Viscount Melbourne, 1779-18481
- Lardner, Dionysius, Reverend LLD, scientific writer1
- Libri, Guglielmo, scientist, book collector, and thief, 1802-18691
- Littrow, Joseph Johann, Baron, astronomer1