Mr
| Rush Id | Member Name | Full Name | Year of Birth | Highest Office |
|---|---|---|---|---|
| 4999 | McGovern, Thomas | Mr Thomas McGovern | 1851 | Backbencher |
| 489 | McGrady, Eddie | Mr Edward Kevin McGrady | 1935 | Backbencher |
| 5001 | McGrath, Joseph | Mr Joseph McGrath | 1887 | Backbencher |
| 5002 | McGregor, James | Mr James McGregor | 1808 | Backbencher |
| 5003 | McGuffin, Samuel | Mr Samuel McGuffin | 1863 | Backbencher |
| 9191 | McGuinness, Joseph | Mr Joseph McGuinness | Backbencher | |
| 490 | McGuinness, Martin | Mr James Martin McGuinness | 1950 | Backbencher |
| 9273 | McGuire, Michael | Mr Michael Thomas Francis McGuire | 1926 | Parliamentary Private Secretary |
| 5004 | McInnes, James | Mr James McInnes | 1901 | Backbencher |
| 2535 | McIntyre, Aeneas | Mr Aeneas John McIntyre | 1821 | Backbencher |
| 8212 | McIntyre, Robert | Mr Robert Douglas McIntyre | 1913 | Backbencher |
| 5008 | McKay, Allen | Mr Allen McKay | 1927 | Backbencher |
| 5007 | McKay, John | Mr John McKay | 1885 | Backbencher |
| 5009 | McKeag, William | Mr William McKeag | 1897 | Backbencher |
| 5010 | McKean, John | Mr John McKean | 1869 | Backbencher |
| 5011 | McKelvey, William | Mr William McKelvey | 1934 | Backbencher |
| 2074 | McKenna, Reginald | Mr Reginald McKenna | 1863 | Cabinet Minister |
| 10145 | McKenzie, Iain | Mr Iain McKenzie | ||
| 5012 | McKibbin, Alan | Mr Alan John McKibbin | 1892 | Backbencher |
| 2019 | McKillop, James | Mr James McKillop | 1844 | Backbencher |
| 7585 | McKillop, William | Mr William McKillop | 1860 | Backbencher |
| 2539 | McLagan, Peter | Mr Peter McLagan | 1823 | Backbencher |
| 2540 | McLaren, Duncan | Mr Duncan McLaren | 1800 | Backbencher |
| 2541 | McLaren, John | Mr John McLaren | 1831 | Law Officer |
| 8752 | McLaren, Martin | Mr Martin John McLaren | 1914 | Junior Whip |