| Professor Jozef Ijsewijn FBA | Year of birth 1932 | Year of death 1998 | Year elected 1990 | Fellowship category Corresponding |
| Sir Courtenay Ilbert GCB, FBA | Year of birth 1841 | Year of death 1924 | Year elected 1902 | Fellowship category UK |
| Professor Halil Inalcik FBA | Year of birth 1916 | Year of death 2016 | Year elected 1995 | Fellowship category Corresponding |
| Very Revd William Ralph Inge KCVO, FBA | Year of birth 1860 | Year of death 1954 | Year elected 1921 | Fellowship category UK |
| Professor Wolfgang Iser FBA | Year of birth 1926 | Year of death 2007 | Year elected 2001 | Fellowship category Corresponding |
| Professor Dr Vjaceslav Ivanov FBA | Year of birth 1929 | Year of death 2017 | Year elected 1977 | Fellowship category Corresponding |
| Professor Seiichi Iwao FBA | Year of birth 1900 | Year of death 1988 | Year elected 1977 | Fellowship category Corresponding |