Name
- Macpherson, John, Baronet , Governor-General of India 1785-17861
- Maddison, George, Under-Sec of State1
- Maitland, James, 8th Earl of Lauderdale1
- Manners, Charles, 4th Duke of Rutland1
- Manners, John, Marquess of Granby, army commander, 1721-17701
- Manship, John, Director of the East India Company1
- Maria, née Walpole, wife of Prince William Henry, Duke of Gloucester and Edinburgh, 1736-18071
- Maseres, Francis, historian and reformer1
- Mathias, Thomas James, FSA, FRS, satirist1
- Matthew, Edward, Lieutenant-General Governor of Grenada1
- Mauduit, Israel, FRS1
- Meade, Robert, of Cork1
- Meath, William, of Marylebone London1
- Medley, Edward, of St Margaret St Westminster1
- Mellish, Charles, Commissioner of Stamp Duties1
- Montagu, Frederic, MP1
- Montagu, George, 4th Duke of Manchester1
- Montagu, George, secretary to Lord North1
- Montagu, Mary, née Whitmore wife of Sir C Montagu of Cranbrook Essex1
- Moodhojee Bhonsalah, Rajah of Berar1