Surname type: A.K.A.
| Member | Alternative Name |
|---|---|
| Michael M'Cartan | Michael (Michael) McCartan (A.K.A.) |
| William McClintock | William (William Bunbury) McClintock-Bunbury (A.K.A.) |
| William McCullagh | William (William Torrens McCullagh) Torrens (A.K.A.) |
| Joseph M'Connell | Joseph (Joseph) McConnell (A.K.A.) |
| Hedworth Meux | Honourable Hedworth (Hedworth) Lambton (A.K.A.) |
| William M'Ewan | William (William) McEwan (A.K.A.) |
| Thomas Meyrick | Thomas (Thomas) Charlton (A.K.A.) |
| Patrick M'Hugh | Patrick (Patrick Aloysius) McHugh (A.K.A.) |
| Edward M'Hugh | Edward (Edward) McHugh (A.K.A.) |
| Paulet Mildmay | Paulet (Paulet) St John-Mildmay (A.K.A.) |
| Humphrey Mildmay | Humphrey (Humphrey) St John-Mildmay (A.K.A.) |
| Adam M'Kinlay | Adam (Adam Storey) McKinlay (A.K.A.) |
| Anne Moffat | Anne (Anne) Picking (A.K.A.) |
| Arthur Monck | Sir Arthur (Arthur Edward) Middleton (A.K.A.) |
| George Monckton | Viscount Galway (A.K.A.) |
| Leo Money | Leone (Leone Giorgio) Chiozza (A.K.A.) |
| Samuel Montagu | Montagu (Montagu) Samuel-Montagu (A.K.A.) |
| Samuel Montagu | Montagu (Montagu) Samuel (A.K.A.) |
| Henry Moor | Henry (Henry) Moor (A.K.A.) |
| Edmund Morel | Georges (Georges Edmond Pierre Achille) Morel de Ville (A.K.A.) |
| Richard More-O'Ferrall | Richard (Richard More) O'Ferrall (A.K.A.) |
| Hamilton Morgan | Hamilton (Hamilton Knox) Grogan (A.K.A.) |
| Owen Morris | Owen (Owen) Temple-Morris (A.K.A.) |
| Hugh Munro-Lucas-Tooth | Hugh (Hugh Vere Huntly Duff) Lucas-Tooth (A.K.A.) |
| Harry Neale | Harry (Harry) Burrard (A.K.A.) |