Name
- Milnes, Robert Offley Ashburton, 1st Marquess of Crewe, politician, 1858-19451
- Monro, Charles Carmichael, 1st Baronet, General, 1860-19291
- Montagu, Charles, 1st Earl of Halifax, politician, 1661-17151
- Morgan, John Pierpont, banker1
- Morley, John, Viscount Morley of Blackburn, statesman, 1838-19231
- Mundella, Anthony John, PC, MP1
- Navy of England[remove]1
- Nelson, Horatio, Viscount Nelson, naval officer, 1758-1805, http://isni.org/isni/000000...1
- Newton, Adam, 1st Baronet1
- Nichols, John Bowyer, printer and antiquary1
- Nicolson, Arthur, 11th Baronet, Baron Carnock1
- Nightingale, Florence, nursing and health care reformer, 1820-19101
- Norman, Henry Wylie, Field Marshal GCB1
- North, Francis, 1st Baron Guilford, Lord Keeper of the Great Seal, 1637-16851
- Northcote, Stafford Henry, 8th Baronet, 1st Earl of Iddesleigh, politician, 1818-18871
- O'Brien, Barry1
- O'Bryen, Dennis, dramatist and political pamphleteer1
- O'Connell, Daniel, MP1
- O'Connor, Thomas Power, MP, journalist1
- O'Dwyer, Michael Francis, GCIE1