| Name |
Election date |
Notes |
| Otto Maass | 14/03/1940 | 8 July 1890 – 3 July 1961 Prof. of Physical Chemistry, Montreal |
| Alexander Macalister | 02/06/1881 | 9 April 1844 – 2 September 1919 |
| Archibald Byron Macallum | 03/05/1906 | 10 April 1858 – 5 April 1934 |
| Robert MacAndrew | 02/06/1853 | 22 March 1801 – 22 May 1873 |
| Justin Macarthy | 05/04/1770 | fl 1770 |
| George Macartney, 1st Earl Macartney | 07/06/1792 | 14 May 1737 – 31 March 1806 |
| James Macartney | 21/02/1811 | 8 March 1770 – 6 March 1843 |
| Francis Sowerby Macaulay | 10/05/1928 | 12 February 1862 – 9 February 1937 |
| Thomas Babington Macaulay, Baron Macaulay | 22/11/1849 | 25 October 1800 – 28 December 1859 |
| Zachary Macaulay | 08/02/1821 | 2 May 1768 – 13 May 1838 |
| Forbes Macbean | 09/11/1786 | 1725 – 11 November 1800 |
| Ernest William MacBride | 11/05/1905 | 12 December 1866 – 17 November 1940 |
| James MacCullagh | 02/02/1843 | 1809 – 24 October 1847 |
| John MacCulloch | 18/05/1820 | 6 October 1773 – 20 August 1835 |
| Alan Graham MacDiarmid | 15/05/2003 | 14 April 1927 – 7 February 2007 |
| David Keith Chalmers Macdonald | 24/03/1960 | 24 July 1920 – 28 July 1963 Physicist |
| Hector Munro Macdonald | 06/06/1901 | 19 January 1865 – 16 May 1935 |
| Ian Grant Macdonald | 15/03/1979 | |
| James Ramsay MacDonald | 26/06/1930 | 13 October 1866 – 9 November 1937 Statute |
| John MacDonald | 15/05/1800 | 30 October 1759 – 16 August 1831 Military Engineer |
| John Denis Macdonald | 09/06/1859 | 26 October 1826 – 7 February 1908 Surgeon |
| John Hay Athole Macdonald, Lord Kingsburgh | 03/05/1888 | 28 December 1836 – 9 May 1919 |
| John Smyth Macdonald | 03/05/1917 | 28 April 1867 – 29 March 1941 Physiologist, Sheffield University |
| Georgina Mary Mace | 13/05/2002 | |
| William Mace | 23/05/1745 | - 17 December 1767 |
| William Macewen | 13/06/1895 | 22 June 1848 – 22 March 1924 |
| Alexander MacFarlane | 19/02/1747 | - 23 August 1755 Judge, Jamaica |
| Robert Gwyn Macfarlane | 15/03/1956 | 26 June 1907 – 26 March 1987 |
| Alistair George James MacFarlane | 15/03/1984 | |
| James Gordon MacGregor | 14/06/1900 | 31 March 1852 – 21 May 1913 |
| John Machin | 30/11/1710 | - 9 June 1751 |
| Charles Macintosh | 29/04/1824 | 29 December 1766 – 25 July 1843 |
| Frank Campbell MacIntosh | 18/03/1954 | 24 December 1909 – 11 September 1992 |
| Angus John Macintyre | 11/03/1993 | |
| Iain MacIntyre | 14/03/1996 | |
| George Bellamy Mackaness | 18/03/1976 | 20 August 1922 – 4 March 2007 Australian Microbiologist |
| Alan Lindsay Mackay | 17/03/1988 | |
| David John Cameron MacKay | 15/05/2009 | |
| George Mackay, 3rd Lord Reay | 09/11/1698 | 1678 – 21 March 1748 |
| Robert Sinclair MacKay | 11/05/2000 | |
| Trudy Frances Charlene Mackay | 18/05/2006 | |
| Andrew Mackenzie | 30 April 2014 | 1956– |
| Andrew Peter Mackenzie | 2015 | 1964 - Physicist |
| Chalmers Jack Mackenzie | 21/11/1946 | 11 July 1888 – 26 February 1984 |
| Charles Mackenzie | 01/06/1815 | fl 1815 |
| Colin Mackenzie | 10/06/1819 | c. 1753 – 8 May 1821 |
| Francis Humberston Mackenzie, 1st Baron Seaforth | 26/06/1794 | 9 June 1754 – 11 January 1815 |
| George Mackenzie, 1st Earl of Cromartie | 14/12/1692 | 1630 – 17 August 1714 |
| Sir George Steuart Mackenzie | 13/04/1815 | 22 June 1780 – October 1848 |
| James Mackenzie | 06/05/1915 | 12 April 1853 – 26 January 1925 |
| Kenneth Mackenzie, 1st Earl of Seaforth | 12/11/1772 | 1744–1781 |
| George Owen Mackie | 14/03/1991 | British biologist, Canada |
| John William Mackie | 15/05/1817 | c. 1788 – Chaplain to Duke of York |
| William Alexander Mackinnon | 14/06/1827 | 2 August 1789 - 30 April 1870 |
| Allan Roy Mackintosh | 14/03/1991 | 22 January 1936 – 20 December 1995 |
| James Mackintosh | 11/11/1813 | 24 October 1765 – 30 May 1832 |
| Nicholas John Mackintosh | 19/03/1987 | 9 July 1935 - 8 February 2015 Psychologist |
| Gilbert Wakefield Mackmurdo | 30/05/1839 | c. 1788 – 26 August 1869 |
| Sir Herbert Mackworth, 1st Baronet | 09/01/1777 | 1 January 1737 – 25 October 1791 MP |
| Colin MacLaurin | 05/11/1719 | |
| Thomas Maclear | 08/12/1831 | 17 March 1794 – 14 July 1879 |
| David Herman MacLennan | 10/03/1994 | Canadian-born biochemist |
| Ian Calman Muir MacLennan | 19/04/2012 | |
| John James Rickard Macleod | 03/05/1923 | 6 September 1876 – 16 March 1935 |
| Norman Macleod | 24/03/1791 | 4 March 1754 – General in Army |
| Percy Alexander MacMahon | 05/06/1890 | 26 September 1854 – 25 December 1929 |
| William Macmichael | 27/03/1817 | 1784 – 10 January 1839 |
| John (Jake) MacMillan | 16/03/1978 | 13 September 1926 – 12 May 2014 Chemist |
| David W.C. MacMillan | 19/04/2012 | |
| Maurice Harold Macmillan | 31/05/1962 | 10 February 1894 – 29 December 1986 Statute 12 |
| John Benjamin Macneill | 05/04/1838 | c. 1793 – 2 March 1880 |
| Enid Anne Campbell MacRobbie | 14/03/1991 | |
| James Ormiston MacWilliam | 09/06/1848 | 1808 – 4 May 1862 |
| John Alexander MacWilliam | 11/05/1916 | 31 July 1857 – 13 January 1937 |
| Paul Anthony Madden | 10/05/2001 | |
| Frederick Madden | 02/02/1832 | 16 February 1801 - 08 Mar 1873 |
| Ieuan Maddock | 16/03/1967 | 29 March 1917 – 29 December 1988 |
| John Royden Maddox | 11/05/2000 | Honorary |
| Simon Hugh Piper Maddrell | 19/03/1981 | |
| John Maddy | 12/06/1817 | c. 1765 – 17 June 1853 |
| Scipione Maffei | 23/12/1736 | 2 June 1675 – 11 February 1755 |
| John Hyacinth de Magalhaens | 21/04/1774 | 5 November 1722 – 7 February 1790 |
| Lorenzo Magalotti | 04/05/1709 | ? 23 October 1637 – ? 2 March 1711 |
| William Magee, Archbishop of Dublin | 11/11/1813 | 18 March 1766 – 18 August 1831 |
| Philip Douglas Magnus | 21/03/1985 | |
| George Magrath | 24/06/1819 | 1775 – 12 June 1857 |
| Eleanor Anne Maguire | 29/04/2016 | 27 March 1970 – |
| Lakshminarayanan Mahadevan | 29/04/2016 | |
| Prasanta Chandra Mahalanobis | 22/03/1945 | 29 June 1893 – 28 June 1972 |
| Panchanan Maheshwari | 18/03/1965 | 9 November 1904 – 18 May 1966 Professor of Botany, Delhi Univ. |
| Kurt Mahler | 18/03/1948 | 27 July 1903 – 25 February 1988, mathematician |
| Charles Mahon, 3rd Earl Stanhope | 19/11/1772 | 3 August 1753 – 15 December 1816 |
| Philip Henry Mahon, 4th Earl Stanhope | 08/01/1807 | 4 December 1781 – 2 March 1855 |
| Philip Henry Mahon, 5th Earl Stanhope | 22/03/1827 | 30 January 1805 – 24 December 1875 |
| Yiu-Wing Mai | 16/05/2008 | |
| Joseph Henry Maiden | 11/05/1916 | 25 April 1859 – 16 November 1925 |
| John Paul Maier | 13/05/1999 | |
| Robert Main | 07/06/1860 | 12 July 1808 – 9 May 1878 |
| Henry James Sumner Maine | 04/06/1874 | 15 August 1822 – 03 |
| Philip Maini | 2015 | 16/10/1959 - Professor of Mathematical Biology |
| Ravinder Nath Maini | 17/05/2007 | |
| Robert James Mair | 17/05/2007 | |
| Ebenezer Fuller Maitland | 28/03/1829 | c. 1780 – 1 November 1858 Landowner, MP for Wallingford |
| John Gorham Maitland | 15/04/1847 | 1818 – 27 April 1863 Barrister & civil servant |
| Samuel Roffey Maitland | 18/04/1839 | 7 January 1792 – 19 January 1866 clergyman |
| William Maitland | 12/04/1733 | c. 1693 – 16 July 1757 Historian, Writer |
| Peter Michael Maitlis | 15/03/1984 | |
| Montague Maizels | 16/03/1961 | 30 September 1899 – 10 February 1976 |
| Ashhurst Majendie | 28/06/1821 | 24 April 1784 – 7 October 1867 |
| John James Majendie | 14/04/1768 | 1709 – 7 August 1783 Clergyman |
| Lewis Majendie | 03/07/1794 | - 1838 Army Officer & Antiquary |
| Charles Immanuel Forsyth Major | 07/05/1908 | 15 August 1843 – 25 March 1923 |
| Tak Wah Mak | 10/03/1994 | |
| Roger Mellor Makins, 1st Baron Sherfield | 26/06/1986 | 3 February 1904 – 9 February 1996 |
| John Malcolm | 26/02/1824 | 2 May 1769 – 30 April 1833 |
| John Grant Malcolmson | 30/04/1840 | 17 November 1802 – 23 March 1844 geologist |
| John Christian Malet | 08/06/1882 | 25 December 1847 – 9 April 1901 Prof of Mathematics, Queens College, Cork |
| Charles Warre Malet | 23/01/1806 | ? 1753 – 15 December 1815 Diplomat, Governor of Bombay |
| Michael Henry Malim | 17/05/2007 | |
| John William Mallet | 07/06/1877 | 10 October 1832 – 7 November 1912 |
| Robert Mallet | 01/06/1854 | 3 June 1810 – 5 November 1881 |
| John Malliet | 02/04/1767 | - 1786 |
| Henry Reginald Arnulph Mallock | 11/06/1903 | 12 March 1851 – 26 June 1933 Mechanic |
| Paul Jacques Malouin | 01/03/1753 | 29 June 1701 – ? 31 December 1777 |
| Marcello Malpighi | 04/03/1669 | 10 March 1628 – ? 30 November 1694 |
| Edward Maltby | 19/02/1824 | 6 April 1770 – 3 July 1859 |
| Thomas Robert Malthus | 05/03/1818 | ? 17 February 1766 – 23 December 1834 |
| Jean Paul de Gua de Malves | 10/03/1743 | c. 1714 – 2 June 1785 |
| Charles Manby | 02/06/1853 | 5 February 1804 – 31 July 1884 |
| George William Manby | 12/05/1831 | 28 November 1765 – 18 November 1854 |
| Joel Mandelstam | 18/03/1971 | |
| Stanley Mandelstam | 15/03/1962 | theoretical physicist |
| Lewis Norman Mander | 15/03/1990 | |
| Xaverius Manetti | 11/11/1756 | 1723 – 19 November 1785 |
| Eustachio Manfredi | 24/10/1728 | 20 September 1674 – 15 February 1739 |
| James Mangles | 20/01/1825 | 1786 – 18 November 1867 Royal Navy |
| Frederick George Mann | 20/03/1947 | 29 June 1897 – 29 March 1982 |
| Nicholas Mann | 26/01/1738 | - 24 November 1753 Antiquary |
| Stephen Mann | 15/05/2003 | |
| Thaddeus Robert Rudolph Mann | 15/03/1951 | 4 December 1908 – 27 November 1993 |
| Theodore Augustine Mann | 03/04/1788 | 22 June 1735 – 23 February 1809 |
| Ian Manners | 19/05/2011 | |
| Owen Manning | 10/12/1767 | 11 August 1721 – 9 September 1801 Vicar of Godalming |
| Richard Manningham | 10/03/1720 | 1690 – 11 May 1759 |
| David Eusthatios Manolopoulos | 19/05/2011 | |
| Anton Adam Mansberg | 09/03/1727 | fl 1727 |
| James Mansergh | 06/06/1901 | 29 April 1834 – 15 June 1905 |
| Eric Harold Mansfield | 18/03/1971 | |
| Peter Mansfield | 19/03/1987 | |
| Terence Arthur Mansfield | 19/03/1987 | |
| Patrick Manson | 14/06/1900 | 3 October 1844 – 9 April 1922 |
| Gideon Algernon Mantell | 24/11/1825 | 4 February 1790 – 10 November 1852 |
| Ernst Christoph Manteuffel | 24/03/1748 | 1676 – 30 January 1749 |
| Irene Manton | 16/03/1961 | 17 April 1904 – 31 May 1988 |
| Nicholas Stephen Manton | 14/03/1996 | |
| Sidnie Milana Manton | 18/03/1948 | 4 May 1902 – 2 January 1979 |
| John Mapletoft | 10/02/1676 | 15 June 1631 – 10 November 1721 |
| Leslie William Mapson | 20/03/1969 | 17 November 1907 – 3 December 1970 |
| Alexander John Gaspard Marcet | 02/06/1808 | 1770 – 19 October 1822 |
| Francis Marcet | 28/01/1836 | 25 May 1803 – 12 April 1883 |
| William Marcet | 11/06/1857 | 13 May 1828 – 4 March 1900 |
| Alfred Le Marchant | 25/11/1819 | fl 1819 |
| Giovanni Giacomo Marinoni | 20/03/1746 | 1676 – 10 January 1755 |
| Leo Edmond Marion | 16/03/1961 | 22 March 1899 – 16 July 1979 |
| Roy Markham | 15/03/1956 | 29 January 1916 – 16 November 1979 |
| Clements Robert Markham | 12/06/1873 | 20 July 1830 – 30 January 1916 |
| George Markham | 07/04/1708 | 1666 – 16 June 1736 |
| James Heywood Markland | 28/03/1816 | 7 December 1788 – 28 December 1864 |
| Vladimir Markovic | 30 April 2014 | Mathematician, California Institute of Technology |
| Paul Jacob Marperger | 09/06/1715 | 3 October 1683 – 20 November 1767 |
| Jens Marklof | 2015 | Germand mathematician |
| John Edward Marr | 04/06/1891 | 14 June 1857 – 1 October 1933 |
| Philippa Charlotte Marrack | 15/05/1997 | |
| Guy Frederic Marrian | 16/03/1944 | 3 March 1904 – 24 July 1981 |
| Frederick Marryat | 13/05/1819 | 10 July 1792 – 9 August 1848 |
| Charles David Marsden | 17/03/1983 | 15 April 1938 – 29 September 1998 |
| Jerrold Eldon Marsden | 18/05/2006 | 17 August 1942 – 21 September 2010 Prof of Engineering, Caltech |
| Ernest Marsden | 21/03/1946 | 20 February 1889 – ? 14 December 1970 Fellow 21/03/1946 |
| William Marsden | 23/01/1783 | 16 November 1754 – 6 October 1836 |
| Herbert Marsh, Bishop of Peterborough | 08/01/1801 | 10 December 1757 – 1 May 1839 |
| James Ernest Marsh | 03/05/1906 | 5 July 1860 – 13 April 1938 Chemist |
| Arthur Milnes Marshall | 04/06/1885 | 8 June 1852 – 31 December 1893 |
| Barry James Marshall | 13/05/1999 | |
| Christopher John Marshall | 09/03/1995 | |
| Francis Hugh Adam Marshall | 13/05/1920 | 11 July 1878 – 5 February 1949 |
| Guy Anstruther Knox Marshall | 03/05/1923 | 20 December 1871 – 8 April 1959 |
| Hugh Marshall | 05/05/1904 | 7 January 1868 – 6 September 1913 |
| John Marshall | 11/06/1857 | 11 September 1818 – 1 January 1891 Surgeon |
| John Charles Marshall | 16/05/2008 | |
| Norman Bertram Marshall | 19/03/1970 | 6 February 1915 – 13 February 1996 Zoologist |
| Robin Marshall | 09/03/1995 | |
| Sheina Macalister Marshall | 21/03/1963 | 20 April 1896 – 7 April 1977 |
| Walter Charles Marshall, Baron Marshall of Goring | 18/03/1971 | 6 March 1932 – 20 February 1996 |
| Charles Marsham, 1st Earl of Romney | 14/03/1776 | 28 September 1744 – 1 March 1811 |
| Robert Marsham | 09/03/1780 | c. 1707 – 4 September 1797 |
| Robert Marsham, 1st Baron Romney | 21/11/1723 | 17 September 1685 – 28 November 1724 |
| Robert Marsham, 2nd Baron Romney | 19/05/1757 | 22 August 1717 – 16 November 1793 |
| Thomas Nelson Marsham | 20/03/1986 | 10 November 1923 – 12 October 1989 |
| Luigi Ferdinand, Count Marsigli | 25/11/1691 | ? 10 July 1658 – 1 November 1730 |
| Giovanni Marsili | 06/04/1758 | - 1773 |
| Hedley Ralph Marston | 17/03/1949 | 26 August 1900 – 25 August 1965 |
| Robert Anthony Martienssen | 18/05/2006 | |
| Alan Douglas Martin | 27/05/2004 | |
| Archer John Porter Martin | 16/03/1950 | 1 March 1910 – 28 July 2002 |
| Charles James Martin | 06/06/1901 | 10 January 1866 – 15 February 1955 |
| George Steven Martin | 14/05/1998 | |
| Henry Newell Martin | 04/06/1885 | 1 July 1848 – 27 October 1896 |
| James Ranald Martin | 13/02/1845 | 1793 – 27 November 1874 |
| Leslie Harold Martin | 21/03/1957 | 22 December 1900 – 1 February 1983 |
| Matthew Martin | 10/07/1794 | 1748 – 20 November 1838 Merchant of Exeter |
| Sidney Harris Cox Martin | 13/06/1895 | 8 April 1860 – 22 September 1924 |
| Thomas John Martin | 11/05/2000 | |
| George Martine | 11/12/1740 | 1700 – ? April 1741 |
| David Forbes Martyn | 16/03/1950 | 27 June 1906 – 5 March 1970 |
| John Martyn | 30/03/1727 | 12 September 1699 – 29 January 1768 |
| Thomas Martyn | 18/05/1786 | 23 September 1735 – 3 June 1825 |
| Martin van Marum | 19/04/1798 | 20 March 1750 – 26 December 1837 |
| Francis Maseres | 02/05/1771 | 15 December 1731 – 19 May 1824 |
| Raghunath Anant Mashelkar | 14/05/1998 | |
| Ernest John Maskell | 16/03/1939 | 2 February 1895 – 20 December 1958 |
| Nevil Maskelyne | 27/04/1758 | 6 October 1732 – 9 February 1811 |
| Basil John Mason | 18/03/1965 | |
| Charles Mason | 24/06/1742 | c. 1699 – 18 December 1771 Clergyman, Geologist |
| Paul James Mason | 09/03/1995 | |
| Ronald Mason | 20/03/1975 | Prof of Chemistry, Sussex University |
| Stephen Finney Mason | 18/03/1982 | Physical Chemist |
| Thomas Godfrey Mason | 06/05/1937 | 24 July 1890 – 22 October 1959 Plant physiologist, Trinidad |
| David William Masser | 26/05/2005 | |
| Victor Ame Philippe Ferrero de Fiesque Masseran | 11/01/1770 | - 1777 |
| Richard Myddleton Massey | 23/10/1712 | c. 1678 – 27 March 1743 |
| Harrie Stewart Wilson Massey | 14/03/1940 | 16 May 1908 – 27 November 1983 |
| Vincent Massey | 17/03/1977 | 28 November 1926 – 26 August 2002 |
| Jean Masson | 08/12/1743 | fl 1743 Chevalier de Besse |
| David Orme Masson | 11/06/1903 | 13 January 1858 – 10 August 1937 |
| James Irvine Orme Masson | 16/03/1939 | 3 September 1887 – 22 October 1962 |
| Arthur Thomas Masterman | 06/05/1915 | 10 April 1869 – 10 February 1941 Fellow 06/05/1915 |
| Maxwell Tylden Masters | 02/06/1870 | 15 April 1833 – 30 May 1907 |
| Thomas Guy Masters | 26/05/2005 | |
| Yoshio Masui | 14/05/1998 | |
| Antonio Matani | 10/03/1763 | 27 July 1730 – 21 June 1779 |
| Gerhard Theodor Materlik | 19/05/2011 | |
| Cotton Mather | 27/07/1713 | 13 February 1663 – 13 February 1728 |
| Robert Mather | 08/05/1729 | c. 1700 – 6 January 1730 |
| Kenneth Mather | 17/03/1949 | 22 June 1911 – 21 March 1990 |
| Thomas Mather | 05/06/1902 | 15 December 1856 – 23 June 1937 |
| Nicholas James Sutherland Matheson | 19/02/1846 | 1796 – 31 December 1878 Jardine Matheson Bank |
| William Mathew | 10/03/1720 | - 30 September 1752 |
| George Ballard Mathews | 03/06/1897 | 24 February 1861 – 19 March 1922 |
| Thomas James Mathias | 19/03/1795 | ? 1754 – August 1835 |
| William George Maton | 26/06/1800 | 31 January 1774 – 30 March 1835 |
| Iain William Mattaj | 13/05/1999 | |
| William Diller Matthew | 15/05/1919 | 20 February 1871 – 24 September 1930 |
| Drummond Hoyle Matthews | 21/03/1974 | 6 February 1931 – 20 July 1997 |
| Leonard Harrison Matthews | 18/03/1954 | 12 June 1901 – 27 November 1986 |
| Paul Taunton Matthews | 21/03/1963 | 20 November 1919 – 26 February 1987 |
| Peter Bryan Conrad Matthews | 15/03/1973 | |
| Richard Ellis Ford Matthews | 21/03/1974 | |
| Bryan Harold Cabot Matthews | 14/03/1940 | 14 June 1906 – 22 July 1986 |
| Philip Matthews | 23/03/1671 | c. 1642 – ? December 1685 |
| George Matthey | 12/06/1879 | 9 May 1825 – 14 February 1913 Refiner, Johnson & Matthey |
| Augustus Matthiessen | 06/06/1861 | 2 January 1831 – 6 October 1870 |
| Matthew Maty | 19/12/1751 | 17 May 1718 – 2 July 1776 |
| Paul Henry Maty | 16/05/1771 | 1745 – 16 January 1787 |
| John Maud | 20/04/1738 | - 8 June 1782 Chemist |
| Israel Mauduit | 13/06/1751 | 1708 – 14 June 1787 |
| Pierre Louis Moreau de Maupertuis | 27/06/1728 | ? 17 July 1698 – 27 July 1759 |
| Douglas Mawson | 03/05/1923 | 5 May 1882 – ? 15 October 1958 |
| King of Bavaria, Maximilian I | 04/03/1802 | 27 May 1756 – 13 October 1825 Royal |
| Joseph Maximilian, Archduke of Austria | 21/01/1819 | 1782–1863 Royal |
| James Clerk Maxwell | 06/06/1861 | 13 June 1831 – 5 November 1879, physicist |
| James Rankin Maxwell | 15/05/1997 | |
| Herbert Eustace Maxwell | 27/01/1898 | 8 January 1845 – 30 October 1937 |
| John Maxwell | 26/02/1829 | 12 May 1791 – 6 June 1865 Traveller, Cape of Good Hope |
| Murray Maxwell | 18/02/1819 | 10 September 1775 – 26 June 1831 |
| Muhammad Iqbal Choudhary | |
| Charles May | 01/06/1854 | 1800 – 10 August 1860 Civil engineer |
| Michael David May | 14/03/1991 | |
| Robert McCredie May, Baron May of Oxford | 15/03/1979 | |
| Christian Mayer | 19/12/1765 | 20 August 1719 – ? 16 April 1783 |
| David Quinn Mayne | 21/03/1985 | |
| John Thomas Mayne | 29/01/1818 | fl 1818 |
| William Valentine Mayneord | 18/03/1965 | 15 February 1902 – 10 August 1988 |
| Charles Mayo | 01/03/1827 | 24 March 1767 – 10 December 1858 Prof. of Anglo-Saxon, Oxford |
| Herbert Mayo | 17/04/1828 | ? 3 April 1796 – 15 May 1852 |
| Paul Jose de Mayo | 20/03/1975 | 8 August 1924 – 26 July 1994 |
| Thomas Mayo | 04/06/1835 | 24 January 1790 – 13 January 1871 |
| John Mayow | 30/11/1678 | 24 May 1640 – October 1679 |
| Guillaume Mazeas | 28/05/1752 | 2 August 1720 – 13 September 1775 |
| James William McBain | 03/05/1923 | 22 March 1882 – 12 March 1953 |
| Robert Alexander McCance | 18/03/1948 | 9 December 1898 – 5 March 1993 |
| Andrew McCance | 18/03/1943 | 30 March 1889 – 11 June 1983 |
| John Vincent McCanny | 09/05/2002 | |
| Frank McClean | 13/06/1895 | 13 November 1837 – 8 November 1904 |
| John Robinson McClean | 03/06/1869 | 1813 – 13 July 1873 |
| John Alexander McClelland | 06/05/1909 | 1 December 1870 – 13 April 1920 |
| Sir Francis Leopold McClintock | 01/06/1865 | 8 July 1819 – 17 November 1907 |
| James Desmond Caldwell McConnell | 19/03/1987 | |
| Francis Patrick McCormick | 14/03/1996 | |
| William Symington McCormick | 21/06/1928 | 30 April 1859 – 23 March 1930 Statute |
| Frederick McCoy | 03/06/1880 | 1823 – ? 13 May 1899 |
| William Hunter McCrea | 20/03/1952 | 13 December 1904 – 25 April 1999 |
| Peter McCullagh | 10/03/1994 | |
| Ernest A McCulloch | 13/05/1999 | |
| Malcolm Thomas McCulloch | 20/05/2010 | |
| Arthur Bruce McDonald | 15/05/2009 | |
| Robert McDonnell | 01/06/1865 | 15 March 1828 – 6 May 1889 Surgeon |
| Trevor John McDougall | 19April 2012 | |
| William McDougall | 02/05/1912 | 22 June 1871 – 28 November 1938 |
| Dusa McDuff | 10/03/1994 | |
| James Dwyer McGee | 17/03/1966 | 17 December 1903 – 28 February 1987 Physicist |
| Simon McGillivray | 29/03/1838 | - 9 June 1840 |
| Ian Alexander McGregor | 19/03/1981 | 26 August 1922 – 1 February 2007 Immunologist |
| James McGrigor | 14/03/1816 | 9 April 1771 – 2 April 1858 |
| William Carmichael McIntosh | 07/06/1877 | 10 October 1838 – 1 April 1931 |
| Michael Edgeworth McIntyre | 15/03/1990 | |
| John Gray McKendrick | 12/06/1884 | 12 August 1841 – 2 January 1926 |
| Aleander McKenzie | 11/05/1916 | 6 December 1869 – 11 June 1951 Prof of Chemistry, Univ College, Dundee |
| Dan Peter McKenzie | 18/03/1976 | |
| Murdoch McKenzie | 19/05/1774 | - ? October 1797 |
| James McKernan | 19/05/2011 | 1964- |
| Thomas Fulton Wilson McKillop | 26/05/2005 | CEO, AstroZeneca |
| Andrew David McLachlan | 16/03/1989 | |
| Robert McLachlan | 07/06/1877 | 10 April 1837 – 23 May 1904 Botanist & Entomologist |
| Anne Laura McLaren | 20/03/1975 | biologist, Foreign Secretary for the Royal Society (1991-6) |
| Digby Johns McLaren | 15/03/1979 | 11 December 1919 – 8 December 2004 |
| Keith Alan McLauchlan | 12/03/1992 | |
| Angela McLean | 15/05/2009 | |
| Irwin McLean | 30 April 2014 | Geneticist, Dundee University |
| Alexander McLeay | 19/01/1809 | 24 June 1767 – 18 July 1848 |
| John Cunningham McLennan | 06/05/1915 | 14 April 1867 – 9 October 1935 |
| Thomas Charles Buckland McLeish | 2011 | |
| Herbert McLeod | 02/06/1881 | 20 February 1841 – 1 October 1923 Chemist, Royal Indian Eng.Coll. |
| James Walter McLeod | 11/05/1933 | 2 January 1887 – 11 March 1978 Prof. of Bacteriology |
| John Bryce McLeod | 12/03/1992 | |
| Andrew Paul McMahon | 17/05/2007 | |
| Charles Alexander McMahon | 09/06/1898 | 24 March 1830 – 21 February 1904 Geologist |
| Harvey Thomas McMahon | 16/05/2008 | Molecular Biologist, Cambridge |
| Andrew James McMichael | 12/03/1992 | Molecular Biologist, MRC |
| John McMichael | 21/03/1957 | 25 July 1904 – 3 March 1993 |
| David Roberts McMurtry | 19/05/2011 | |
| John Michael McNamara | 19 April 2012 | |
| James McFadyen McNeill | 17/03/1949 | 19 August 1892 – 24 July 1964 |
| Bryan Austin McSwiney | 16/03/1944 | 20 May 1894 – 8 March 1947 |
| Gilean Alistair Tristram McVean | 29/04/2016 | |
| John Graham McWhirter | 13/05/1999 | |
| Richard Mead | 30/11/1703 | 11 August 1673 – 16 February 1754 |
| Samuel Mead | 08/03/1739 | - 11 October 1776 |
| Thomas Wilson Meade | 14/03/1996 | |
| Pierre François Andre Méchain | 30/04/1789 | ? 16 April 1744 – ? 20 September 1805 |
| Peter Brian Medawar | 17/03/1949 | 28 February 1915 – 2 October 1987 |
| Henry Benedict Medlicott | 07/06/1877 | 3 August 1829 – 6 April 1905 |
| Gerard Meerman | 24/04/1760 | 6 December 1722 – 15 December 1771 |
| Charles Edward Kenneth Mees | 16/03/1939 | 26 May 1882 – 15 August 1960 |
| Goverdhan Mehta | 26/05/2005 | |
| Raphael Meldola | 04/06/1886 | 19 July 1849 – 16 November 1915, chemist |
| Charles Meldrum | 01/06/1876 | 19 October 1821 – 28 August 1901 |
| John Mellanby | 02/05/1929 | 12 June 1878 – 15 July 1939 |
| Edward Mellanby | 07/05/1925 | 8 April 1884 – 30 January 1955 |
| Pierre de Mellarede | 11/06/1713 | c. 1659 – 19 March 1730 |
| Martinho de Mello e Castro | 21/04/1757 | fl 1757 |
| Sebastian Joseph de Carvalho e Marquis of Pombal Mello | 15/05/1740 | 13 May 1699 – 8 May 1782 |
| Joseph William Mellor | 12/05/1927 | 9 July 1869 – 24 May 1938 |
| James Cosmo Melvill | 14/01/1841 | 1792 – 23 July 1861 Secretary to East India Co |
| Robert Melvill | 16/02/1775 | 12 October 1723 – 29 August 1809 General in British Army |
| Alexander Melville | 01/02/1827 | 14 October 1790 – 16 September 1840 Supt East India Co Mint |
| Harry Work Melville | 20/03/1941 | 27 April 1908 – 15 June 2000 Professor of Chemistry |
| Bruno Mendel | 21/03/1957 | 3 November 1897 – 23 August 1959 |
| Kurt Alfred Georg Mendelssohn | 15/03/1951 | 7 January 1906 – 18 September 1980, German-born British medical physicist cryogenic engineering |
| Diego de Mendoca | 05/02/1736 | fl 1736 |
| Joseph Mendoza y Rios | 11/04/1793 | ? 15 September 1762 – ? 3 March 1815 |
| Francisco Xavier de Menezes | 02/11/1738 | fl 1738 |
| Johann Burchard Menkenius | 30/11/1699 | 27 March 1675 – 1 April 1732 |
| Mambillikalathil Govind Kumar Menon | 19/03/1970 | |
| James Woodham Menter | 17/03/1966 | 22 August 1921 – 18 July 2006 |
| Alexander Danilovich Menzicoff | 29/07/1714 | ? 1673 – ? 12 November 1729 |
| Robert Gordon Menzies | 03/06/1965 | 20 December 1894 – 15 May 1978, twelfth Prime Minister of Australia[2] |
| Nicholas Mercator | 14/11/1666 | c. 1620 – ? February 1687 |
| Frank Brian Mercer | 15/03/1984 | 22 December 1927 – 22 November 1998 |
| James Mercer | 11/05/1922 | 15 January 1883 – 21 February 1932 |
| John Mercer | 03/06/1852 | 22 February 1791 – 30 November 1866 |
| Roger Meredith | 06/04/1681 | 1637 – 17 February 1701 |
| William George Meredith | 18/03/1830 | c. 1804 – August 1831 |
| John Meres | 12/03/1724 | - 1726 Apothecary |
| John Meres | 12/03/1719 | - 22 February 1736 |
| Thomas Meres | 08/12/1686 | c. 1662 - |
| John Merewether | 03/05/1838 | 1797 – 4 April 1850 |
| Christopher Merrett | 20/05/1663 | ? 16 February 1614 – 19 August 1695 Original Fellow 20/05/1664 |
| Charles Watkins Merrifield | 04/06/1863 | 20 October 1827 – 1 January 1884 |
| John Merrill | 21/03/1745 | fl 1745 Mathematician |
| Alexander Walter Merrison | 20/03/1969 | 21 March 1924 – 19 February 1989 |
| Patrick Anthony Merton | 15/03/1979 | 8 October 1920 – 13 June 2000 |
| Thomas Ralph Merton | 13/05/1920 | 12 January 1888 – 10 October 1969 |
| Rudolf Messel | 02/05/1912 | 14 January 1848 – 18 April 1920 |
| Charles Messier | 06/12/1764 | 26 June 1730 – ? 12 April 1817 |
| Leon Mestel | 17/03/1977 | astronomer |
| Donald Metcalf | 17/03/1983 | |
| Philip Metcalfe | 04/11/1790 | c. 1733 – 26 August 1818 |
| Friedrich Christian Meuschen | 05/04/1764 | 1719 - |
| Edward Meyrick | 05/05/1904 | 24 November 1854 – 31 March 1938 |
| James Meyrick | 19/06/1800 | ? 1748 – 27 November 1818 |
| Owen Putland Meyrick | 09/05/1776 | c. 1752 – 24 March 1825 |
| Louis Compton Miall | 02/06/1892 | 13 September 1842 – 21 February 1921 |
| John David Michaelis | 30/04/1789 | 1717 – 22 August 1791 |
| Anthony George Maldon Michell | 03/05/1934 | 21 June 1870 – 17 February 1959 |
| John Michell | 12/06/1760 | 1724 – 21 April 1793 |
| John Henry Michell | 05/06/1902 | 26 October 1863 – 3 February 1940 |
| Richard Michell | 12/05/1774 | 1728–1789 |
| Robert Hall Michell | 20/03/1986 | |
| Pietro Antonio Michelotti | 11/12/1718 | 1680 – 1 January 1740 |
| James Mickleton | 03/07/1718 | fl 1718 |
| Charles Stewart Middlemiss | 12/05/1921 | 22 November 1859 – 11 June 1945 |
| Benjamin Middleton | 14/12/1687 | fl 1668–1712 |
| Christopher Middleton | 07/04/1737 | - 12 February 1770 |
| Thomas Hudson Middleton | 25/06/1936 | 32 August 1863 – 14 May 1943 Statute Bishop of Calcutta |
| Thomas Fanshawe Middleton | 19/05/1814 | 26 January 1769 – 8 July 1822 |
| Paul Midgley | 30 April 2014 | Materials Scientist, Cambridge University |
| John Edwin Midwinter | 21/03/1985 | Prof of Electronic Eng, University College, London |
| John Miers | 09/03/1843 | 25 August 1789 – 17 October 1879 |
| Henry Alexander Miers | 04/06/1896 | 25 May 1858 – 10 December 1942 |
| Gero Miesenböck | 2015 | 15/07/1965 - Neuroscientist |
| Ricardo Miledi | 19/03/1970 | |
| Arnold Ashley Miles | 16/03/1961 | 21 March 1904 – 11 February 1988 Fellow 16/03/1961 |
| Henry Miles | 09/06/1743 | 3 June 1698 – 10 February 1763 |
| Mervyn John Miles | 19/05/2011 | |
| Thomas Miles | 15/03/1722 | - 9 December 1767 Clergyman & Headmaster |
| Andrew John McWalter Millar | 19/04/2012 | |
| David Andrew Barclay Miller | 09/03/1995 | |
| Frederick Robert Miller | 05/05/1932 | 2 May 1881 – 11 November 1967 Prof of Physiology, Univ of W.Ontario |
| George Miller | 24/05/1827 | - ? November 1849 Lt-Col in Army |
| Jacques Francis Albert Pierre Miller | 19/03/1970 | |
| John Fletcher Miller | 06/06/1850 | 20 June 1816 – 14 July 1856 |
| Joseph Miller | 30/03/1843 | ? 1798 – 23 February 1860 Marine Engineer |
| Philip Miller | 22/01/1730 | 1691 – 18 December 1771 |
| Roger Ervin Miller | 26/05/2005 | |
| Stewart Crichton Miller | 14/03/1996 | 2 July 1934 – 7 August 1999 |
| William Allen Miller | 06/02/1845 | 17 December 1817 – 30 September 1870 |
| William Hallowes Miller | 08/02/1838 | 6 April 1801 – 20 May 1880 |
| Daniel Milles | 14/01/1675 | 1626–1689 |
| Edward Milles | 19/06/1746 | - 7 February 1776 Fellow 19/06/1747 |
| Jeremiah Milles (died 1796) | 23/02/1775 | c. 1751 – ? November 1796 |
| Jeremiah Milles | 01/04/1742 | c. 1714 – 13 February 1784 |
| Thomas Milles | 07/04/1708 | 19 June 1671 – 13 May 1740 |
| Langford Millington | 06/05/1802 | - 9 May 1807 |
| Abraham Mills | 30/05/1799 | c. 1750 – 2 March 1828 Mineralogist |
| Anne Mills | 02/05/2013 | |
| Bernard Yarnton Mills | 21/03/1963 | |
| Edmund James Mills | 04/06/1874 | 8 December 1840 – 21 April 1921 |
| Ian Mark Mills | 14/03/1996 | |
| John Mills | 13/02/1766 | c. 1717 – ? 1796 |
| Walter Mills | 12/07/1682 | 1654 – 7 January 1726 Physician |
| William Hobson Mills | 03/05/1923 | 6 July 1873 – 22 February 1959 |
| Francis Milman | 07/05/1772 | 31 August 1746 – 24 June 1821 |
| Edward Arthur Milne | 06/05/1926 | 15 February 1896 – 21 September 1950 |
| John Milne | 09/06/1887 | 30 December 1850 – ? 30 July 1913 |
| Malcolm Davenport Milne | 16/03/1978 | 22 May 1915 – 3 April 1991 |
| Arthur David Milner | 19/05/2011 | |
| Arthur John Robin Gorell Milner | 17/03/1988 | 13 January 1934 – 20 March 2010 Computer Scientist, Cambridge |
| Brenda Atkinson Milner | 15/03/1979 | |
| Isaac Milner | 15/06/1780 | 11 January 1750 – 1 April 1820 |
| Samuel Roslington Milner | 11/05/1922 | 22 August 1875 – 12 August 1958 |
| Richard Monckton Milnes, 1st Baron Houghton | 10/12/1868 | 19 June 1809 – 11 August 1885 |
| César Milstein | 20/03/1975 | 8 October 1927 – 24 March 2002, medicine, Nobel Prize (1984) |
| Edward Milward | 14/01/1742 | c. 1712 – 26 August 1757 |
| Edward Alfred Minchin | 04/05/1911 | 22 February 1866 – 30 September 1915 |
| George Minchin Minchin | 13/06/1895 | 25 May 1845 – 23 March 1914 |
| Daniel Minet | 18/06/1767 | - 25 January 1790 |
| David Michael Patrick Mingos | 12/03/1992 | |
| Andrew Mitchell | 26/02/1736 | 15 April 1708 – 28 January 1771 Diplomat |
| Edgar William John Mitchell | 20/03/1986 | 25 September 1925 – 30 October 2002 |
| George Francis Mitchell | 15/03/1973 | 15 October 1912 – 25 November 1997 |
| George Hoole Mitchell | 19/03/1953 | 31 December 1902 – 11 March 1976 |
| John Mitchell | 15/12/1748 | 14 April 1711 – 29 February 1768 |
| John Francis Brake Mitchell | 27/05/2004 | |
| John Wesley Mitchell | 15/03/1956 | |
| Joseph Stanley Mitchell | 20/03/1952 | 22 July 1909 – 22 February 1987 |
| Peter Chalmers Mitchell | 03/05/1906 | 23 November 1864 – 2 July 1945 |
| Peter Dennis Mitchell | 21/03/1974 | 29 September 1920 – 10 April 1992 |
| John Murdoch Mitchison | 16/03/1978 | 15 June 1922 – 17 March 2011 |
| Nicholas Avrion Mitchison | 16/03/1967 | |
| Timothy John Mitchison | 15/05/1997 | |
| William Mitford | 13/04/1749 | - 1787 Clerk of Chancery Court |
| Ashesh Prosad Mitra | 17/03/1988 | |
| Sisir Kumar Mitra | 20/03/1958 | 24 October 1890 – 13 August 1963 |
| St. George Jackson Mivart | 03/06/1869 | 30 November 1827 – 1 April 1900 |
| Henry Keith Moffatt | 20/03/1986 | |
| James Reid Moir | 06/05/1937 | 13 June 1879 – 24 February 1944 Archaeologist |
| Abraham de Moivre | 30/11/1697 | 26 May 1667 – 27 November 1754 |
| Coote Molesworth | 18/03/1731 | ? 1695 – 29 November 1782 |
| Richard Molesworth | 04/05/1786 | 1737 – 29 September 1799 |
| Richard Molesworth, 3rd Viscount Molesworth | 15/03/1722 | 1680 – 12 October 1758 |
| Robert Molesworth, 1st Viscount Molesworth | 23/03/1698 | 7 September 1656 – 22 May 1725 |
| William Molesworth | 26/11/1835 | 23 May 1810 – 22 October 1855 |
| Pietro Paolo Molinelli | 20/04/1749 | 2 March 1702 – 11 October 1764 |
| Patrick Loudon Mollison | 21/03/1968 | 17 March 1914 – 26 November 2011 Haematologist |
| John Dixon Mollon | 13/05/1999 | |
| Adam Gottlob Moltke | 05/04/1764 | 10 November 1710 – 25 September 1792 |
| Daniel Molyneux | 19/02/1736 | 1708–1738 |
| Samuel Molyneux | 01/12/1712 | ? 16 July 1689 – 13 April 1728 |
| Thomas Molyneux | 03/11/1686 | 14 April 1661 – 19 October 1733 |
| William Molyneux | 03/02/1686 | 17 April 1656 – 11 October 1698 |
| Salvador Moncada | 17/03/1988 | |
| Andre Monceaux | 15/12/1670 | fl 1670 |
| George Monck, 1st Duke of Albemarle | 09/01/1665 | 6 December 1608 – 3 January 1670 |
| Alexander Moncrieff | 08/06/1871 | 17 April 1829 – 3 August 1906 Military Engineer |
| Alfred Moritz Mond, 1st Baron Melchett | 21/06/1928 | 24 October 1868 – 27 December 1930 Statute, chemist |
| Ludwig Mond | 04/06/1891 | 7 March 1839 – 11 December 1909, 1928, chemist |
| Robert Ludwig Mond | 17/03/1938 | 9 September 1867 – 22 October 1938, chemist and archaeologist |
| William Taylor Money | 11/06/1818 | - July 1834 |
| Louis Guillaume Le Monnier | 07/02/1745 | 27 June 1717 – 7 September 1799 |
| Pierre Charles Le Monnier | 05/04/1739 | 20 November 1715 – ? 31 May 1799 |
| Alexander Monro | 27/06/1723 | 8 September 1697 – 10 July 1767 |
| Charles Monro | 17/05/1821 | c. 1757 – 25 September 1821 |
| Donald Monro | 24/04/1766 | 15 January 1728 – 9 June 1802 |
| James Monson | 12/11/1684 | c. 1660 – ? 1688 |
| Joseph de Montagny | 07/06/1739 | fl 1739 |
| Charles Montagu, 1st Earl of Halifax | 30/11/1695 | 16 April 1661 – 19 May 1715 |
| Edward Montagu | 12/12/1745 | - 1775 |
| Edward Wortley Montagu | 31/05/1750 | 1713 – 29 April 1776 |
| Edward Montagu, 1st Earl of Sandwich | 20/05/1663 | 27 July 1625 – 28 May 1672 Original |
| Edward Montagu, 2nd Earl of Manchester | 10/05/1665 | 1602 – 5 May 1671 |
| Frederick Montagu | 16/02/1792 | July 1733 – 30 July 1800 |
| George Montagu, 1st Duke of Montagu | 07/12/1749 | 26 July 1712 – 23 May 1790 |
| John Montagu, 2nd Duke of Montagu | 13/03/1718 | 29 March 1690 – 6 July 1749 |
| John Montagu, 4th Earl of Sandwich | 20/03/1740 | 3 November 1718 – 30 April 1792 |
| Matthew Montagu | 05/03/1795 | fl 1795 |
| Nicholas de Montaudouin | 16/02/1749 | fl 1749 |
| Marques de Monte Leone | 05/04/1716 | fl 1716–1718 |
| Moses Haim Montefiore | 16/06/1836 | 24 October 1784 – 28 July 1885 |
| John Lennox Monteith | 18/03/1971 | 3 September 1929 - 20 July 2012 Physicist |
| William Monteith | 13/02/1845 | 22 June 1790 – 18 April 1864 |
| Charles de Secondat Montesquieu | 26/02/1730 | 18 January 1689 – 10 February 1755 |
| Jean Baptiste Montesquieu | 06/12/1744 | 10 December 1716 – 1796 |
| Thomas George Montgomerie | 06/06/1872 | 23 April 1830 – 31 January 1878 |
| Charles Daniel Trudaine De Montigny | 23/01/1766 | 3 January 1703 – 19 January 1769 |
| Conde de Montijo | 16/11/1732 | fl 1732 |
| Pierre Remond de Montmort | 09/06/1715 | 27 October 1678 – 7 October 1719 |
| Antoine Jean Baptiste Robert Auget Montyon, Baron de Montyon | 05/11/1812 | 26 December 1733 – 29 December 1820 |
| Philip Burton Moon | 20/03/1947 | 17 May 1907 – 9 October 1994 |
| Edward Moor | 01/05/1806 | 1771 – 26 February 1848 |
| Robert Michael Moor | 10/03/1994 | |
| Stephen Erwin Moorbath | 17/03/1977 | |
| Benjamin Moore | 02/05/1912 | 14 January 1867 – 3 March 1922 |
| Brian Cecil Joseph Moore | 09/05/2002 | Prof of Auditory Perception, Cambridge |
| Charles Moore | 25/02/1768 | c. 1722 – 18 May 1775 antiquary |
| Daniel Moore | 28/06/1810 | c. 1760 – 6 January 1828 barrister |
| Derek William Moore | 15/03/1990 | Prof of Maths, Imperial College |
| George Moore | 02/04/1835 | c. 1777 – 8 November 1859 |
| John Moore | 10/11/1715 | fl 1715–1734 |
| John Arthur Moore | 26/02/1846 | 1791 – 7 July 1860 Major, East India Co. |
| John Carrick Moore | 05/06/1856 | 14 February 1805 – 12 February 1898 |
| Michael Arthur Moore | 16/03/1989 | |
| Jonas Moore | 12/03/1680 | - ? 1681 Surveyor-general of Ordnance (son) |
| Jonas Moore | 03/12/1674 | 9 February 1617 – 25 August 1679 Surveyor-general of Ordnance (father) |
| Patrick Alfred Caldwell Moore | 10/05/2001 | 4 March 1923 – 9 December 2012 Honorary |
| Stephen Moore, 3rd Earl Mount Cashell | 22/04/1847 | 20 May 1792 – 10 October 1883 |
| Thomas Edward Lawes Moore | 01/06/1854 | 1819 – 1 May 1872 Naval (magnetic) surveyor |
| Patrick Alfred Pierce Moran | 20/03/1975 | 14 July 1917 – 19 September 1988 |
| Jean François Clement Morand | 01/06/1769 | 28 April 1726 – 13 August 1784 |
| Sauveur François Morand | 09/01/1729 | 2 April 1697 – 21 July 1773 |
| Robert Moray | 28/11/1660 | 1608 – 4 July 1673 |
| Henry Mordaunt, 2nd Earl of Peterborough | 18/11/1663 | ? October 1624 – 19 June 1697 |
| Thomas Osbert Mordaunt | 14/04/1796 | c. 1729 – 13 February 1809 Lt-General in Army |
| Louis Joel Mordell | 15/05/1924 | 28 January 1888 – 12 March 1972 |
| Henry More | 25/05/1664 | October 1614 – 1 September 1687 |
| Robert More | 05/02/1730 | 1703 – January 1780 Botanist |
| Cesar Moreau | 08/02/1827 | 1791 – 28 November 1861 |
| Thomas Morell | 16/06/1768 | 18 March 1703 – 19 February 1784 Garrison chaplain, Portsmouth, librettist |
| Henry John Reynolds Moreton, 3rd Earl of Ducie | 22/02/1855 | 25 June 1827 – 28 October 1921 |
| Thomas Reynolds-Moreton, 1st Earl of Ducie | 09/06/1814 | 31 August 1776 – 22 June 1840 |
| Giambattista Morgagni | 30/11/1722 | 26 February 1682 – ? 6 December 1771 |
| Anthony Morgan | 20/05/1663 | 1621 – c. November 1668 Original Soldier & MP |
| Arthur Morgan | 02/04/1835 | 1801 – 10 March 1870 Actuary |
| Campbell Greig De Morgan | 06/06/1861 | 22 November 1811 – 12 April 1876 |
| Charles Octavius Swinnerton Morgan | 02/02/1832 | 15 September 1803 – 5 August 1888 |
| Conwy Lloyd Morgan | 01/06/1899 | 7 February 1852 – 6 March 1936 |
| David Owen Morgan | 19/04/2012 | |
| John Morgan | 07/03/1765 | 10 June 1735 – 15 October 1789 |
| Michael John Morgan | 26/05/2005 | |
| Charles Morgan | 30/05/1816 | 5 February 1760 – 5 December 1846 |
| Gilbert Thomas Morgan | 06/05/1915 | 22 September 1870 – 01 February 1940 |
| Morien Bedford Morgan | 16/03/1972 | 20 December 1912 – 4 April 1978 |
| Walter Thomas James Morgan | 17/03/1949 | 5 October 1900 – 10 February 2003 |
| William Morgan | 06/05/1790 | June 1750 – 4 May 1833 |
| James Justinian Morier | 04/02/1819 | c. 1780 – 19 March 1849 |
| William Morison | 03/03/1842 | - 15 May 1851 |
| Benjamin Morland | 12/03/1707 | c. 1653 – 9 October 1733 Schoolmaster |
| Joseph Morland | 30/11/1703 | c. 1671–1716 Author & Physician |
| Samuel Morland | 30/11/1704 | - 1722 |
| Samuel Morland | 24/05/1722 | - 1734 |
| George Morley | 28/11/1666 | 27 Feb 1597 – 29 October 1684 |
| John Morley, 1st Viscount Morley of Blackburn | 15/12/1892 | 24 December 1838 – 23 September 1923 MP |
| Leslie Sydney Dennis Morley | 12/03/1992 | - 16 June 2011 |
| Lorenzo Morosini | 10/03/1763 | fl 1763 |
| Hervey Redmond Morres, 2nd Viscount Mountmorres | 12/12/1793 | c. 1746 – 18 August 1797 |
| Corbyn Morris | 19/05/1757 | - 24 December 1779 Commissioner of Customs |
| Edward Morris | 18/06/1812 | c. 1769 – 13 April 1815 MP for Newport, Cornwall |
| Gareth Alun Morris | 30 April 2014 | |
| George Paulet Morris | 14/02/1805 | c. 1760 – 17 September 1837 Physician |
| Howard Redfern Morris | 17/03/1988 | |
| John Carnac Morris | 10/03/1831 | 16 October 1798 – 2 August 1858 Civil Servant |
| John Gareth Morris | 17/03/1988 | |
| Matthew Robinson Morris, 2nd Baron Rokeby | 27/11/1746 | ? April 1713 – 30 November 1800 |
| Michael Morris | 05/04/1764 | - 1791 Army Physician |
| Richard Graham Michael Morris | 15/05/1997 | |
| Robert Hunter Morris | 12/06/1755 | c. 1700 – 27 January 1764 Governor of Pennsylvania |
| Peter John Morris | 10/03/1994 | |
| Russell Morris | 29/04/2016]] | Materials chemist |
| William Richard Morris, Viscount Nuffield | 08/06/1939 | 11 October 1877 – 22 August 1963 Statute |
| Robert Morrison | 12/05/1825 | 5 January 1782 – 1 August 1834 |
| Henton Morrogh | 19/03/1964 | 29 September 1917 – 20 September 2003 |
| Leonard Morse | 15/05/1766 | - 31 January 1808 |
| Robert Morse | 12/11/1789 | 30 February 1743 – 28 January 1818 Military Engineer |
| Clifford Hiley Mortimer | 20/03/1958 | 27 February 1911 – 11 May 2010 Biologist, Wisconsin |
| Cromwell Mortimer | 27/06/1728 | c. 1699 – 7 January 1752 |
| John Mortimer | 30/11/1705 | c. 1656–1736 Author, Merchant, Agriculturalist |
| Charles Morton | 16/01/1752 | 1716 – 10 February 1799 |
| John Morton | 30/11/1703 | c. 1670 – 18 July 1726 Naturalist |
| John Morton | 19/05/2011 | Psychologist |
| Richard Alan Morton | 16/03/1950 | 22 September 1899 – 21 January 1977 Spectroscopist |
| Henry Moseley | 07/02/1839 | 9 July 1801 – 20 January 1872 |
| Henry Nottidge Moseley | 07/06/1877 | 14 November 1844 – 10 November 1891 |
| Charles Moss | 28/05/1752 | 1711 – 13 April 1802 |
| Joseph William Moss | 18/02/1830 | 1803 – 23 May 1862 |
| William Branks Motherwell | 27/05/2004 | Professor of Chemistry, University College |
| Basil Mott | 05/05/1932 | 16 September 1859 – 7 September 1938 |
| Frederick Walker Mott | 04/06/1896 | 23 October 1853 – 8 June 1926 |
| Nevill Francis Mott | 07/05/1936 | 30 September 1905 – 8 August 1996 |
| Allen Moulin | 18/07/1683 | c. 1653–1690 |
| Jacques du Moulin | 05/12/1667 | - c. 1686 |
| George Moult | 30/11/1689 | - 1727 |
| John Fletcher Moulton, Baron Moulton | 03/06/1880 | 18 November 1844 – 9 March 1921 |
| Pierre Moultou | 27/04/1780 | - 27 July 1821 |
| James Mounsey | 08/03/1750 | 1700 – 2 February 1773 |
| William Mountaine | 14/03/1751 | - 2 May 1779 |
| Louis Mountbatten, 1st Earl Mountbatten of Burma | 19/05/1966 | 26 June 1900 – 27 August 1979 Statute |
| Arthur Ernest Mourant | 17/03/1966 | 11 April 1904 – 29 August 1994 |
| Edward Richard Moxon | 17/05/2007 | |
| Joseph Moxon | 30/11/1678 | 8 August 1627 – 28 February 1691 |
| John Mudge | 29/05/1777 | 1721 – 26 March 1793 |
| Richard Zachary Mudge | 05/12/1822 | 6 September 1790 – 24 September 1854 |
| William Mudge | 28/06/1798 | 1 December 1762 – 17 April 1820 |
| Ferdinand Jacob Heinrich Mueller | 06/06/1861 | 30 June 1825 – 9 October 1896, botanist |
| Isabella Helen Mary Muir | 17/03/1977 | 20 August 1920 – 28 November 2005 |
| Robert Muir | 04/05/1911 | 5 July 1864 – 30 March 1959 |
| Thomas Muir | 14/06/1900 | 25 August 1844 – 21 March 1934 |
| Alexander Muirhead | 05/05/1904 | 26 May 1848 – 13 December 1920 |
| Gerhard Friedrich Muller | 10/12/1730 | 1705–1783 |
| Hugo Muller | 07/06/1866 | 29 July 1833 – 23 May 1915 |
| Benjamin von Munchausen | 30/04/1684 | fl 1684 |
| Jan de Munck | 21/01/1748 | fl 1748 |
| Nicholas Munckley | 26/01/1749 | c. 1721 – 20 February 1770 |
| Anthony John Mundella | 09/03/1882 | 28 March 1825 – 21 July 1897 |
| Sean Munro | 19/05/2011 | |
| Ludovico Antonio Muratori | 14/11/1717 | 21 October 1673 – 23 January 1750 |
| Charles Murchison | 07/06/1866 | 26 July 1830 – 23 April 1879 |
| Roderick Impey Murchison | 06/04/1826 | 20 February 1792 – 22 October 1871 |
| Patrick Murdoch | 20/03/1746 | - October 1774 |
| Thomas Murdoch | 04/07/1805 | 1758–1846 |
| Robert Murphy | 05/06/1834 | 1806 – 12 March 1843 |
| David William Murray, 3rd Earl of Mansfield | 20/05/1802 | 8 March 1777 – 18 February 1840 |
| David Murray, 4th Viscount Stormont | 29/08/1666 | - 24 July 1668 |
| George Murray | 19/06/1823 | 7 February 1772 – 28 July 1846 |
| George Robert Milne Murray | 03/06/1897 | 11 November 1858 – 16 December 1911 |
| James Murray | 24/06/1779 | c. 1722 – 19 April 1794 |
| James Alexander Murray | 07/05/1925 | 25 November 1873 – 20 November 1950 Director, Imp. Cancer Relief Fund |
| James Dickson Murray | 21/03/1985 | |
| James Murray, 1st Baron Glenlyon | 09/04/1818 | 29 May 1782 – 12 October 1837 |
| John Murray, 4th Duke of Atholl | 09/11/1780 | 30 June 1755 – 29 September 1830 |
| John Murray | 04/06/1896 | 3 March 1841 – 16 March 1914 |
| Kenneth Murray | 15/03/1979 | 30 December 1930 – 7 April 2013 |
| Mungo Murray | 11/09/1661 | 12 October 1599 – 1670 |
| Noreen Elizabeth Murray | 18/03/1982 | |
| Robin MacGregor Murray | 20/05/2010 | |
| John Norman Murrell | 14/03/1991 | |
| Samuel Musgrave | 12/06/1760 | 29 September 1732 – 4 July 1780 |
| William Musgrave | 17/03/1774 | 8 October 1735 – 3 January 1800 Barrister |
| William Musgrave | 19/03/1684 | 4 November 1655 – ? December 1721 |
| William Musgrave | 15/03/1722 | c. 1696 – November 1724 Physician |
| Pieter van Musschenbroek | 14/11/1734 | 14 March 1692 – 19 September 1761 |
| John Myddleton | 08/03/1739 | - 9 April 1747 |
| Charles Samuel Myers | 06/05/1915 | 13 March 1873 – 12 October 1946 |
| Robert Mylne | 21/05/1767 | 4 January 1734 – 5 May 1811 |
| Robert William Mylne | 07/06/1860 | 14 June 1817 – 2 July 1890 |
| William Chadwell Mylne | 16/03/1826 | ? 5 April 1781 – 25 December 1863 |
| John Mytton | 26/02/1767 | - 1769 |