Name
- Martin, George, Admiral of the Fleet; GCB1
- Martin, Thomas, Captain; RN1
- Mason, Comm. Henry Browne, RN1
- Mason, Comm. Thomas Henry1
- Mason, Francis, Rear-Admiral; KCB1
- Mason, Henry William, Lieutenant; RN1
- Massie, John Bevis, Lieutenant; RN1
- Massie, Thomas Lecke, Captain; RN1
- Massingberd, Comm. Vincent Amcotts, RN1
- Masterman, Charles Henry, Lieutenant; RN1
- Masters, Thomas James Poole, Lieutenant; RN1
- Mathews, Edward Morell, Lieutenant; RN1
- Mathews, Robert Bates, Lieutenant; RN1
- Matson, Comm. George William, RN1
- Matson, Comm. Henry James, RN1
- Matthews, Comm. Alfred, RN1
- Maude, Comm. Hon. Francis, RN1
- Maude, Comm. William George, RN1
- Mauger, Comm. Nicholas, RN1
- Maunsell, Robert, Captain; CB, RN1