Composers – I
- Ian, Janis (b.1951)
- Ibarra, Susie (b. 1970)
- Ibert, Jacques (1890–1962)
- Ibrahim, Abdullah (b.1934)
- Idenstam, Gunnar (b.1961)
- Igelhoff, Peter (1904-78)
- Iglesias, Alberto (b.1955)
- Igudesman, Aleksey Mikhailovich (b.1973)
- Iles, Nikki (b.1963)
- Imbert, Raphaël (b. 1974)
- Immich, Carl
- Ingalls, Jeremiah (1764–1838)
- Ingegneri, Marc'Antonio (c.1535–1592)
- Ingelgem, Maarten Van (b. 1976)
- Ingemann, Bernhard Severin (1789-1862)
- Ingram, Adrian (b.1950)
- Innocenzi, Carlo (1899–1962)
- Inwood, Paul (b.1947)
- Ionatos, Angélique (1954-2021)
- Ippolitov-Ivanov, Mikhail Mikhailovich (1859–1935)
- Iradier, Sebastián (1809-1865)
- Ireland, John (1879–1962)
- Irvine, Jessie Seymour (1836-87)
- Irvine, Robert (b.1963)
- Isaac, Heinrich (1450–1517)
- Isaacs, Mark (b.1958)
- Isbäck, Staffan (b.1955)
- Israels, Chuck (b.1936)
- Iturralde, Pedro (b.1929)
- Ivanovici, Iosif (1845–1902)
- Ives, Charles (1874–1954)
- Iwai, Naohiro (b.1923)
- Iyer, Vijay (b.1971)
- Izumi, Taku (1930-92)
