| Dr J Franklin Jameson FBA | Year of birth 1859 | Year of death 1937 | Year elected 1918 | Fellowship category Corresponding |
| Professor Michel Jeanneret FBA | Year of birth 1940 | Year of death 2019 | Year elected 2012 | Fellowship category Corresponding |
| Professor Edouard Jeauneau FBA | Year of birth 1924 | Year of death 2019 | Year elected 1992 | Fellowship category Corresponding |
| Sir Richard Jebb OM, FBA | Year of birth 1841 | Year of death 1905 | Year elected 1902 | Fellowship category UK |
| Very Revd Dr Hubert Jedin FBA | Year of birth 1900 | Year of death 1980 | Year elected 1967 | Fellowship category Corresponding |
| Dr Anne Jeffery FBA | Year of birth 1915 | Year of death 1986 | Year elected 1965 | Fellowship category UK |
| Professor Harold Jenkins FBA | Year of birth 1909 | Year of death 2000 | Year elected 1989 | Fellowship category UK |
| Rt Hon Lord Roy Jenkins of Hillhead OM, PC, Hon FBA | Year of birth 1920 | Year of death 2003 | Year elected 1993 | Fellowship category Honorary |
| Dr Edward Jenks FBA | Year of birth 1861 | Year of death 1939 | Year elected 1930 | Fellowship category UK |
| Sir Ivor Jennings KBE, QC, FBA | Year of birth 1903 | Year of death 1965 | Year elected 1955 | Fellowship category UK |
| Professor Dr Joachim Jeremias FBA | Year of birth 1900 | Year of death 1979 | Year elected 1973 | Fellowship category Corresponding |
| Professor Robert Jervis FBA | Year of birth 1940 | Year of death 2021 | Year elected 2017 | Fellowship category Corresponding |
| Professor Otto Jespersen FBA | Year of birth 1860 | Year of death 1943 | Year elected 1923 | Fellowship category Corresponding |
| Sir Ganganath Jha FBA | Year of birth 1872 | Year of death 1941 | Year elected 1941 | Fellowship category Corresponding |
| Professor Harold Henry Joachim FBA | Year of birth 1868 | Year of death 1938 | Year elected 1922 | Fellowship category UK |
| Professor Henry Jocelyn FBA | Year of birth 1933 | Year of death 2000 | Year elected 1982 | Fellowship category UK |