| Juliusz Kaden-Bandrowski | 1885–1944 | 1 |
| Franz Kafka | 1883–1924 | 8 |
| Eino Kaila | 1890–1958 | 1 |
| Uuno Kailas | 1901–1933 | 1 |
| Jacob Kainen | 1909–2001 | 1 |
| M. G. (Maurice Grenville) Kains | 1868–1946 | 1 |
| Gerrit Kalff | 1856–1923 | 1 |
| Horace Meyer Kallen | 1882–1974 | 1 |
| Stephen A. Kallis | born 1937 | 1 |
| Aristos Kampanis | 1883–1956 | 1 |
| Wassily Kandinsky | 1866–1944 | 1 |
| William T. (William Terence) Kane | 1880–1946 | 1 |
| Réginald Kann | 1876–1925 | 2 |
| Immanuel Kant | 1724–1804 | 7 |
| Vuk Stefanović Karadžić | 1787–1864 | 2 |
| J. K. Kari | 1868–1921 | 1 |
| Yrjö Karilas | 1891–1982 | 1 |
| Arvi Karisto | 1879–1958 | 1 |
| Louis Charles Karpinski | 1878–1956 | 1 |
| Valerian Viliamovich Karrik | 1869–1942 | 1 |
| Gustav Karsten | 1820–1900 | 1 |
| Rudolf Kassner | 1873–1959 | 1 |
| Herbert D. Kastle | 1924–1987 | 1 |
| Väinö Kataja | 1867–1914 | 1 |
| J. J. L. ten (Jan Jakob Lodewijk) Kate | 1819–1889 | 1 |
| Harriet L. Kaucher | 1867–1947 | 1 |
| Richard Kaufmann | 1846–1894 | 1 |
| Kauppis-Heikki | 1862–1920 | 5 |
| Sheila Kaye-Smith | 1887–1956 | 1 |
| Albin de Kazimirski Biberstein | 1808–1887 | 1 |
| Robert Keable | 1887–1927 | 2 |
| H. T. (Hightower Theodore) Kealing | 1860–1918 | — |
| Elfric Leofwin Kearney | 1856–1913 | 1 |
| Thomas Kearns | 1862–1918 | 1 |
| John Keats | 1795–1821 | 4 |
| John Keble | 1792–1866 | 1 |
| Elizabeth Keckley | 1818–1907 | 1 |
| Carl Niclas Keckman | 1793–1838 | 1 |
| Henry F. (Henry Francis) Keenan | 1850–1928 | 1 |
| H. G. (Henry George) Keene | 1825–1915 | 2 |
| Virginia Keep | 1878–1962 | 1 |
| Christian Keferstein | 1784–1866 | 1 |
| Brendan P. Kehoe | 1970–2011 | 1 |
| Joseph Warren Keifer | 1836–1932 | 1 |
| Thomas Keightley | 1789–1872 | 1 |
| Heinrich Keil | 1822–1894 | 1 |
| Albert Keim | 1876–1947 | 1 |
| Clarence Budington Kelland | 1881–1964 | 2 |
| Joseph E. (Joseph Everidge) Kelleam | 1913–1975 | 1 |
| Arthur Ignatius Keller | 1866–1924 | 10 |
| Gerard Keller | 1829–1899 | 2 |
| Gottfried Keller | 1819–1890 | 1 |
| Helen Keller | 1880–1968 | 2 |
| Florence Kelley | 1859–1932 | 1 |
| Francis Clement Kelley | 1870–1948 | 2 |
| J. D. Jerrold (James Douglas Jerrold) Kelley | 1847–1922 | 1 |
| Truman Lee Kelley | 1884–1961 | 1 |
| Alice Maude Kellogg | 1862–1911 | 1 |
| Brainerd Kellogg | 1834–1920 | 2 |
| E. E. (Ella Ervilla) Kellogg | 1853–1920 | 1 |
| John Harvey Kellogg | 1852–1943 | 2 |
| Allen Kelly | 1855–1916 | 1 |
| Florence Finch Kelly | 1858–1939 | 1 |
| Maire Monica Kelly | born 1876 | 1 |
| Myra Kelly | 1876–1910 | 2 |
| R. Talbot (Robert Talbot) Kelly | 1861–1934 | 1 |
| Sophia Kelly | born 1815 | 1 |
| John Kelman | 1864–1929 | 1 |
| Francis W. (Francis Willey) Kelsey | 1858–1927 | 1 |
| E. W. (Edward Windsor) Kemble | 1861–1933 | 2 |
| Fanny Kemble | 1809–1893 | 3 |
| Beatrice Kemp | 1871–1966 | 1 |
| Harry Kemp | 1883–1960 | 1 |
| A. B. (Alfred Bray) Kempe | 1849–1922 | 1 |
| William Bailey Kempling | born 1869 | 1 |
| Henry Kendall | 1839–1882 | 1 |
| May Kendall | born 1861 | 1 |
| Ralph S. (Ralph Selwood) Kendall | 1878–1940 | 1 |
| Hayward Keniston | born 1883 | 1 |
| George Kennan | 1845–1924 | 2 |
| Charles Rann Kennedy | 1808–1867 | 2 |
| James Kennedy | 1815–1899 | 1 |
| James Boyd Kennedy | born 1870 | 1 |
| John F. (John Fitzgerald) Kennedy | 1917–1963 | 2 |
| Sidney R. (Sidney Robinson) Kennedy | born 1875 | 1 |
| Charles Kent | 1823–1902 | 1 |
| Charles Foster Kent | 1867–1925 | 4 |
| Grace Helen Kent | 1875–1973 | 1 |
| Camilla Kenyon | 1876–1957 | 1 |
| Kenyon, Frederic G. (Frederic George), Sir | 1863–1952 | 3 |
| Keppel, Henry, Sir | 1809–1904 | 1 |
| Anni Kepplerus | 1849–1899 | 1 |
| W. P. (William Paton) Ker | 1855–1923 | 2 |
| Francis Kermode | born 1874 | 1 |
| Robert Joseph Kerner | 1887–1956 | 1 |
| George F. Kerr | 1869–1953 | 4 |
| James Kerr | 1847–1905 | 1 |
| Robert Kerr | 1755–1813 | 18 |
| Sophie Kerr | 1880–1965 | — |
| Georg Kerschensteiner | 1854–1932 | 1 |
| Friedrich Kerst | 1870–1961 | 2 |
| Vaughan Kester | 1869–1911 | 2 |
| Tom Kettle | 1880–1916 | 1 |
| Ellen Key | 1849–1926 | 1 |
| Frances Parkinson Keyes | 1885–1970 | 1 |
| Homer Eaton Keyes | 1875–1938 | 1 |
| Donald E. (Donald Edward) Keyhoe | 1897–1988 | 1 |
| Friedrich Wilhelm Keyl | 1823–1871 | 1 |
| Geoffrey Keynes | 1887–1982 | 1 |
| John Maynard Keynes | 1883–1946 | 2 |
| Leander S. (Leander Sylvester) Keyser | 1856–1937 | 1 |
| Jennie Ellis Keysor | born 1860 | 1 |
| Salomo Keyzer | 1823–1868 | 1 |
| Daniel P. (Daniel Parish) Kidder | 1815–1891 | 2 |
| Frederic Kidder | 1804–1885 | 1 |
| Alexander Lange Kielland | 1849–1906 | 4 |
| Cornelis Johannes Kieviet | 1858–1931 | 3 |
| Samuel Smith Kilburn | 1831–1903 | 2 |
| K. Kiljander | 1817–1879 | 2 |
| Robert Kiljander | 1848–1924 | 10 |
| W. D. (William Dool) Killen | 1806–1902 | 2 |
| Joyce Kilmer | 1886–1918 | 2 |
| Dorothy Kilner | 1755–1836 | 1 |
| Florence A. (Florence Antoinette) Kilpatrick | born 1888 | 1 |
| Hilja Kilpi | 1844–1927 | 1 |
| Volter Kilpi | 1874–1939 | 1 |
| Alonzo Kimball | 1874–1923 | 6 |
| C. A. (Charles Augustus) Kincaid | 1870–1954 | 1 |
| Alfred Castner King | 1873–1941 | 1 |
| Basil King | 1859–1928 | 5 |
| Charles King | 1844–1933 | 19 |
| F. H. (Franklin Hiram) King | 1848–1911 | 1 |
| Grace Elizabeth King | 1852–1932 | 1 |
| Gunning King | 1859–1940 | 1 |
| L. W. (Leonard William) King | 1869–1919 | 2 |
| Philip Gidley King | 1758–1808 | 3 |
| Philip Parker King | 1793–1856 | 2 |
| Richard King | 1879–1947 | 1 |
| King-Hall, Stephen, Sir | 1893–1966 | 1 |
| Alexander William Kinglake | 1809–1891 | 1 |
| Anna Bonus Kingsford | 1846–1888 | 1 |
| Charles Kingsley | 1819–1875 | 45 |
| Florence Morse Kingsley | 1859–1937 | 1 |
| Frances Eliza Grenfell Kingsley | 1814–1891 | 2 |
| Henry Kingsley | 1830–1876 | 2 |
| Mary Henrietta Kingsley | 1862–1900 | 1 |
| Agnes Kinloch Kingston | 1823–1913 | 2 |
| William Henry Giles Kingston | 1814–1880 | 113 |
| Thomas L. Kinkead | 1855–1905 | 2 |
| J. R. (John R.) Kinnear | 1842–1912 | 1 |
| Margaret West Kinney | 1872–1952 | 3 |
| Troy Kinney | 1871–1938 | 3 |
| Kinzie, John H., Mrs. | 1806–1870 | 1 |
| Rudyard Kipling | 1865–1936 | 44 |
| Andrew Kippis | 1725–1795 | 1 |
| W. F. (William Forsell) Kirby | 1844–1912 | 2 |
| William Kirby | 1817–1906 | 1 |
| Dolly Williams Kirk | 1863–1941 | 1 |
| John Kirk | 1813–1886 | 1 |
| John Foster Kirk | 1824–1904 | 5 |
| Maria Louise Kirk | 1860–1938 | 3 |
| William Frederick Kirk | 1877–1927 | 1 |
| Caroline M. (Caroline Matilda) Kirkland | 1801–1864 | — |
| Edith Brown Kirkwood | 1875–1954 | 1 |
| John Copeland Kirtland | 1870–1951 | 1 |
| Arthur Kitson | 1848–1915 | 1 |
| Harry Dexter Kitson | 1886–1959 | 1 |
| Aleksis Kivi | 1834–1872 | 9 |
| Klabund | 1890–1928 | 1 |
| Charles Klein | 1867–1915 | 3 |
| Felix Klein | 1849–1925 | 1 |
| Sydney T. (Sydney Turner) Klein | 1853–1934 | 1 |
| Grenville Kleiser | 1868–1953 | 11 |
| Heinrich von Kleist | 1777–1811 | 6 |
| Flora Klickmann | 1867–1958 | 1 |
| John J. Kliewer | 1859–1937 | 1 |
| A. S. Kline | born 1947 | 1 |
| John Kline | 1797–1864 | 1 |
| Friedrich Maximilian Klinger | 1752–1831 | 1 |
| Tristan Klingsor | 1874–1966 | 1 |
| Jacob Klinkhamer | 1738–1817 | 1 |
| Willem Kloos | 1859–1938 | 1 |
| Jeanne Kloos-Reyneke van Stuwe | 1874–1951 | 1 |
| Louis Klopsch | 1852–1910 | 1 |
| Friedrich Gottlieb Klopstock | 1724–1803 | 1 |
| Samuel L. (Samuel Lorenzo) Knapp | 1783–1838 | 1 |
| Shepherd Knapp | 1873–1946 | 3 |
| William I. (William Ireland) Knapp | 1835–1908 | 1 |
| Abner Kneeland | 1774–1844 | 1 |
| Gertrude Knevels | 1881–1962 | 1 |
| Henry Herbert Knibbs | 1874–1945 | 5 |
| Harry Anable Kniffin | 1876–1939 | — |
| Damon Knight | 1922–2002 | 1 |
| Joseph Knight | born 1845 | 1 |
| Melvin M. (Melvin Moses) Knight | 1887–1981 | 1 |
| William Allen Knight | 1863–1957 | 1 |
| William Angus Knight | 1836–1916 | 3 |
| Frederic Lawrence Knowles | 1869–1905 | 2 |
| James Knowles | 1811–1886 | 1 |
| James Sheridan Knowles | 1784–1862 | 2 |
| Knowles, James, Sir | 1831–1908 | 1 |
| Matilda Darroch Knowles | 1811–1886 | 1 |
| Robert E. (Robert Edward) Knowles | 1868–1946 | 1 |
| Thomas Wallace Knox | 1835–1896 | 3 |
| Gustav Kobbé | 1857–1918 | 2 |
| Paul de Kock | 1793–1871 | — |
| W. H. (William Henry) Koebel | 1872–1923 | 1 |
| Marie Koenen | 1879–1959 | 1 |
| W. H. D. (William Henry Dethlef) Koerner | 1878–1938 | 1 |
| Edith Eudora Kohl | born 1884 | 1 |
| Johann Georg Kohl | 1808–1878 | 1 |
| Lydia Koidula | 1843–1886 | 1 |
| E. L. (Ellsworth Leonardson) Kolb | born 1876 | 1 |
| Leopold Kompert | 1822–1886 | 2 |
| Manuel Komroff | 1890–1974 | — |
| Paul Konewka | 1840–1871 | 1 |
| Pingzhong Kong | 1044–1111 | 1 |
| Shangren Kong | 1648–1718 | 1 |
| Paul G. (Paul George) Konody | 1872–1933 | 1 |
| Harry Lyman Koopman | 1860–1937 | 1 |
| C. (Cornelis) Koppenol | 1865–1946 | 1 |
| Charles James Korinek | born 1880 | 1 |
| Vladimir Galaktionovich Korolenko | 1853–1921 | — |
| Alfred Korzybski | 1879–1950 | 1 |
| Veikko Antero Koskenniemi | 1885–1962 | 7 |
| Kaarlo Koskimies | 1851–1918 | 3 |
| Lajos Kossuth | 1802–1894 | 1 |
| S. S. (Samuel Solomonovitch) Koteliansky | 1880–1955 | 1 |
| August von Kotzebue | 1761–1819 | 2 |
| Otto von Kotzebue | 1787–1846 | 2 |
| Aarni Kouta | 1884–1924 | 2 |
| R. von (Richard) Krafft-Ebing | 1840–1902 | 1 |
| Kaarlo Kramsu | 1855–1895 | 1 |
| Laura Fry Kready | born 1874 | 1 |
| Henry Edward Krehbiel | 1854–1923 | 6 |
| Fritz Kreisler | 1875–1962 | 1 |
| Mite Kremnitz | 1852–1916 | 1 |
| Roy G. Krenkel | 1918–1983 | 1 |
| Ivan H. Krestanoff | 1890–1966 | 1 |
| Vs. Vl. (Vsevolod Vladimirovich) Krestovskii | 1840–1895 | — |
| Albert Kretschmer | 1825–1891 | 1 |
| Friedrich Reinhold Kreutzwald | 1803–1882 | 2 |
| Alfred Kreymborg | 1883–1966 | 1 |
| J. (Jiddu) Krishnamurti | 1895–1986 | 1 |
| P. H. (Pieter Hendrick) Kritzinger | 1870–1930 | 1 |
| Charles Frederick Kroeh | 1846–1928 | 1 |
| Christian Krogh | born 1852 | 1 |
| Helmi Krohn | 1871–1967 | 2 |
| Julius Krohn | 1835–1888 | 5 |
| Ed Krol | born 1951 | 1 |
| Joseph Martin Kronheim | 1810–1896 | 5 |
| Kropotkin, Petr Alekseevich, kniaz | 1842–1921 | 2 |
| Joseph Wood Krutch | 1893–1970 | 1 |
| A. C. Kuiper | 1860–1934 | 2 |
| Juho Kujala | 1878–1919 | 1 |
| George Frederick Kunz | 1856–1932 | 1 |
| A. I. (Aleksandr Ivanovich) Kuprin | 1870–1938 | 1 |
| Matti Kurikka | 1863–1915 | 6 |
| Thomas Kyd | 1558–1594 | 1 |
| Galloway Kyle | born 1871 | 1 |
| Peter B. (Peter Bernard) Kyne | 1880–1957 | 8 |
| Aurél Kárpáti | 1884–1963 | 1 |
| Hilda Maria Käkikoski | 1863–1912 | 1 |
| Ludwig Ritter von Köchel | 1800–1877 | 2 |
| Reinhold Köhler | 1830–1892 | 1 |
| Alfred Köppen | 1869–1940 | 1 |
| Julius Köstlin | 1826–1902 | 1 |