| Ibert, Jacques | 1890 - 1962 | French |
| Ichiyanagi, Toshi | 1933 - | Japanese |
| Ifukube, Akira | 1914 - | Japanese |
| Ikenouchi, Tomojiro | 1906 - | Japanese |
| Il Verso, Antonio | ?c1560 - 1621 | Italian |
| Ileborgh, Adam | fl. c1448 | German |
| Iliev, Konstantin | 1924 - | Bulgarian |
| Imbrie, Andrew | 1921 - | American |
| India, Sigismondo d' | c1582 - 1629 | Italian |
| Indy, Vincent d' | 1851 - 1931 | French |
| Ingegneri, Marc'Antonio | c1547 - 1592 | Italian |
| Inghelbrecht, D.-E. | 1880 - 1965 | French |
| Insanguine, Giacomo | 1728 - 1795 | Italian |
| Ioannidis, Yannis | 1930 - | Greek |
| Ipavec, Benjamin | 1829 - 1909 | Slovene |
| Ippolitov-Ivanov, Mikhayl | 1859 - 1935 | Russian |
| Ireland, John | 1879 - 1962 | English |
| Irino, Yoshiro | 1921 - 1980 | Japanese |
| Isaac, Heinrich | c1450 - 1517 | Flemish |
| Isaack, Bartholomew | 1661 - 1703 | English |
| Isabella Leonarda | 1620 - c1700 | Italian |
| Isamitt, Carlos | 1887 - 1974 | Chilean |
| Ishii, Maki | 1936 - | Japanese |
| Isouard, Nicolas | 1773 - 1818 | French |
| Istvan, Miloslav | 1928 - 1990 | Czech |
| Iturriaga, Enrique | 1918 - | Peruvian |
| Ivanov, Mikhail Mikhaylovich | 1849 - 1927 | Russian |
| Ivanovs, Janis | 1906 - 1983 | Latvian |
| Ives, Charles | 1874 - 1954 | American |
| Ives, Simon | 1600 - 1662 | English |