| Susan Fenimore Cooper | 1813–1894 | 4 |
| William Cooper | 1810–1877 | 1 |
| F. Graham (Frank Graham) Cootes | 1879–1960 | 2 |
| Henry Frederick Cope | 1870–1923 | 2 |
| Charles Copeland | 1858–1929 | 7 |
| Nicolaus Copernicus | 1473–1543 | — |
| A. E. (Alfred Edgar) Coppard | 1878–1957 | — |
| Alfred Coppel | 1921–2004 | 1 |
| Charles Coppens | 1835–1920 | 1 |
| Harold Copping | 1863–1932 | 2 |
| Bennet Copplestone | 1867–1932 | 1 |
| François Coppée | 1842–1908 | 14 |
| Henry Coppée | 1821–1895 | 1 |
| Julian Stafford Corbett | 1854–1922 | 2 |
| Edouard Corbière | 1793–1875 | 9 |
| Tristan Corbière | 1845–1875 | 1 |
| Walton Corbould | 1859–1919 | 1 |
| Luciano Cordeiro | 1844–1900 | 1 |
| Manoel Caldas Cordeiro | 1869–1914 | 1 |
| Henri Cordier | 1849–1925 | 2 |
| Mary Kennedy Core | 1863–1951 | 1 |
| Marie Corelli | 1855–1924 | 13 |
| Hubert C. (Hubert Christian) Corlette | 1869–1956 | 1 |
| W. E. (William Eppes) Cormack | 1796–1868 | 1 |
| Pierre Corneille | 1606–1684 | 2 |
| Fred C. (Frederick Carruthers) Cornell | 1867–1921 | 1 |
| Miss (Julia) Corner | 1798–1875 | 1 |
| C. J. (Charles John) Cornish | 1858–1906 | 1 |
| Barry Cornwall | 1787–1874 | 1 |
| Dean Cornwell | 1892–1960 | 2 |
| Gilles Corrozet | 1510–1568 | 1 |
| Alexandre Corréard | 1788–1857 | 1 |
| C. S. (Charles Schell) Corson | 1882–1921 | 2 |
| Hiram Corson | 1828–1911 | 1 |
| Armando César Cortes-Rodrigues | 1891–1971 | 1 |
| Edward Samuel Corwin | 1878–1963 | 2 |
| David Cory | 1872–1966 | 4 |
| Fanny Y. Cory | 1877–1972 | 1 |
| William Johnson Cory | 1823–1892 | 1 |
| Abner Cosens | 1861–1942 | 1 |
| Fernandes Costa | 1848–1920 | 1 |
| Floriano Alves da Costa | born 1825 | 1 |
| Louisa Stuart Costello | 1799–1870 | 1 |
| Charles de Coster | 1827–1879 | 1 |
| Malakias Costiander | 1815–1870 | 1 |
| Edmond Cotteau | 1833–1896 | 1 |
| Frank J. Cotter | 1878–1948 | 1 |
| John L. (John Lambert) Cotter | 1911–1999 | 1 |
| H. B. (Henry Bernard) Cotterill | 1846–1924 | 1 |
| Paul Cottin | 1856–1932 | 1 |
| Joseph Cottle | 1770–1853 | 1 |
| Charles Cotton | 1630–1687 | 20 |
| Robert Christie Cotton | 1885–1952 | 1 |
| Stéphen Coubé | 1857–1938 | 1 |
| Elliott Coues | 1842–1899 | 1 |
| Charles A. (Charles Augustin) Coulomb | 1872–1935 | 1 |
| John Merle Coulter | 1851–1928 | 1 |
| W. T. (William Thomas) Councilman | 1854–1933 | 1 |
| Louis Couperus | 1863–1923 | 5 |
| Elizabeth Couperus-Baud | 1867–1960 | 1 |
| François Courboin | 1865–1926 | 1 |
| John Cournos | 1881–1966 | 2 |
| O. W. (Oscar William) Coursey | 1873–1946 | 1 |
| Calista McCabe Courtenay | 1868–1936 | 1 |
| W. L. (William Leonard) Courtney | 1850–1928 | 1 |
| John W. (John William) Cousin | 1849–1910 | 1 |
| Henrique Ernesto de Almeida Coutinho | 1788–1868 | 2 |
| Louis Couturat | 1868–1914 | 1 |
| James Cowan | 1841–1906 | 1 |
| Sam K. (Sam Kinkade) Cowan | born 1869 | 1 |
| Edward B. (Edward Byles) Cowell | 1826–1903 | 1 |
| Thomas Cowherd | 1817–1907 | 1 |
| Abraham Cowley | 1618–1667 | 1 |
| Henry Cowling | 1874–1945 | 1 |
| William Cowper | 1731–1800 | 6 |
| F. A. (Francis Augustus) Cox | 1783–1853 | 2 |
| Cox, Irving E., Jr. | 1917–2001 | 2 |
| J. Bradford (Joseph Bradford) Cox | 1840–1884 | 1 |
| Jacob D. (Jacob Dolson) Cox | 1828–1900 | 2 |
| James Cox | 1851–1901 | 1 |