| Sir Thomas Kendrick KCB, FBA | Year of birth 1895 | Year of death 1979 | Year elected 1941 | Fellowship category UK |
| Professor George Kennan FBA | Year of birth 1904 | Year of death 2005 | Year elected 1983 | Fellowship category Corresponding |
| Right Hon Lord Justice William Kennedy PC, FBA | Year of birth 1846 | Year of death 1915 | Year elected 1909 | Fellowship category UK |
| Professor Edward Kenney FBA | Year of birth 1924 | Year of death 2019 | Year elected 1968 | Fellowship category UK Emeritus |
| Professor Courtney Stanhope Kenny FBA | Year of birth 1847 | Year of death 1930 | Year elected 1909 | Fellowship category UK |
| Dr John Kent FBA | Year of birth 1928 | Year of death 2000 | Year elected 1986 | Fellowship category UK |
| Sir Frederic Kenyon GBE, KCB, FBA | Year of birth 1863 | Year of death 1952 | Year elected 1903 | Fellowship category UK |
| Professor John Kenyon FBA | Year of birth 1927 | Year of death 1996 | Year elected 1981 | Fellowship category UK |
| Dame Kathleen Kenyon DBE, FBA | Year of birth 1906 | Year of death 1978 | Year elected 1955 | Fellowship category UK |
| Mr Neil Ker CBE, FBA | Year of birth 1908 | Year of death 1982 | Year elected 1958 | Fellowship category UK |
| Professor William Paton Ker FBA | Year of birth 1855 | Year of death 1923 | Year elected 1903 | Fellowship category UK |
| Professor Joseph Kerman FBA | Year of birth 1924 | Year of death 2014 | Year elected 1984 | Fellowship category Corresponding |
| Professor Sir Frank Kermode FBA | Year of birth 1919 | Year of death 2010 | Year elected 1973 | Fellowship category UK Emeritus |
| Mr Wyndham Ketton-Cremer FBA | Year of birth 1906 | Year of death 1969 | Year elected 1968 | Fellowship category UK |
| Professor Dr Rudolph Keydell FBA | Year of birth 1887 | Year of death 1982 | Year elected 1973 | Fellowship category Corresponding |
| Sir Geoffrey Keynes Hon FBA | Year of birth 1887 | Year of death 1982 | Year elected 1980 | Fellowship category Honorary |