| Cleveland Moffett | 1863–1926 | 3 |
| Jules Moinaux | 1825–1895 | 1 |
| D. M. (David Macbeth) Moir | 1798–1851 | 2 |
| Chr. K. F. (Christian Knud Frederik) Molbech | 1821–1888 | 1 |
| Meyer Moldeven | born 1917 | 2 |
| Mrs. Molesworth | 1839–1921 | 9 |
| Molière | 1622–1673 | 27 |
| Theodoor Molkenboer | 1871–1920 | 1 |
| Dina Mollinger-Hooyer | 1871–1940 | 1 |
| J. Fitzgerald (Joseph Fitzgerald) Molloy | 1858–1908 | 1 |
| Ferenc Molnár | 1878–1952 | 1 |
| Walter von Molo | 1880–1958 | 1 |
| Theodor Mommsen | 1817–1903 | 12 |
| Monash, John, Sir | 1865–1931 | 1 |
| Francisco de Moncada | 1586–1635 | 1 |
| Monier-Williams, Monier, Sir | 1819–1899 | 2 |
| Maria Monk | 1816–1849 | 1 |
| Rafael Monleón y Torres | 1835–1900 | 1 |
| Marc Monnier | 1827–1885 | 1 |
| Harold Monro | 1879–1932 | — |
| Harriet Monroe | 1860–1936 | 1 |
| James Monroe | 1758–1831 | 1 |
| Montagu, Mary Wortley, Lady | 1689–1762 | 2 |
| Mrs. (Elizabeth) Montagu | 1718–1800 | 1 |
| Michel de Montaigne | 1533–1592 | 23 |
| Luís de Montalvor | 1891–1947 | — |
| Geminiano Montanari | 1633–1687 | 1 |
| Nicola A. (Nicola Aloysius) Montani | 1880–1948 | 1 |
| Joseph Montano | 1844–1914 | 1 |
| Montblanc, Charles, comte de | 1833–1894 | 1 |
| Montefiore, Judith Cohen, Lady | 1784–1862 | 1 |
| Ramalho Monteiro | 1862–1949 | 1 |
| James Monteith | 1831–1890 | 1 |
| Madame de Montespan | 1641–1707 | 9 |
| Montesquieu, Charles de Secondat, baron de | 1689–1755 | 1 |
| Maria Montessori | 1870–1952 | 1 |
| Lode Monteyne | 1886–1959 | 1 |
| Adélaïde de Montgolfier | 1789–1880 | 1 |
| D. H. (David Henry) Montgomery | 1837–1928 | 2 |
| Frances Trego Montgomery | 1858–1925 | 3 |
| L. M. (Lucy Maud) Montgomery | 1874–1942 | 17 |
| Isabelle de Montolieu | 1751–1832 | 1 |
| W. A. (William Austin) Montriou | born 1810 | 1 |
| Susanna Moodie | 1803–1885 | 7 |
| Dwight Lyman Moody | 1837–1899 | 1 |
| John Moody | 1868–1958 | 1 |
| Julia Moody | born 1869 | 1 |
| James H. Moon | born 1830 | 1 |
| James Mooney | 1861–1921 | 1 |
| Arthur Moore | 1866–1952 | 1 |
| Aubertine Woodward Moore | 1841–1929 | 1 |
| Moore, Bloomfield H., Mrs. | 1824–1899 | 1 |
| Clement Clarke Moore | 1779–1863 | 2 |
| Edward Moore | 1712–1757 | 1 |
| Edward Alexander Moore | born 1842 | 1 |
| Edward Caldwell Moore | 1857–1943 | 1 |
| Frank Moore | born 1843 | 1 |
| Frank Frankfort Moore | 1855–1931 | 1 |
| Frederick Ferdinand Moore | 1881–1947 | 2 |
| George Moore | 1852–1933 | 19 |
| Henry Keatley Moore | born 1846 | 1 |
| J. Hampton (Joseph Hampton) Moore | 1864–1950 | 1 |
| Jane Newell Moore | 1857–1945 | 1 |
| Joel R. (Joel Roscoe) Moore | born 1879 | 1 |
| John Hamilton Moore | 1738–1807 | 1 |
| John Trotwood Moore | 1858–1929 | 1 |
| John W. (John Wheeler) Moore | 1833–1906 | 1 |
| T. Sturge (Thomas Sturge) Moore | 1870–1944 | 1 |
| Thomas Moore | 1779–1852 | 10 |
| Ward Moore | 1903–1978 | 1 |
| Herbert Joseph Moorhouse | born 1882 | 2 |
| F. W. (Frederic William) Moorman | 1872–1919 | 4 |
| Wenceslau de Moraes | 1854–1929 | 1 |
| George N. (George Nathaniel) Morang | 1866–1937 | 1 |
| Joseph Morató | 1875–1918 | 1 |
| Albert Mordell | 1885–1965 | 1 |
| Hannah More | 1745–1833 | 2 |
| More, Thomas, Saint | 1478–1535 | 3 |
| Curt Moreck | 1888–1957 | 1 |
| Almira Morey | born 1819 | 1 |