All composers: I
- Ibarrondo, Félix
- Ibert, Jacques
- Ifukube, Akira
- Ikramova, Anna
- Iliffe, Frederick
- Illarramendi, Angel
- Illés, Márton
- Ilyinsky, Alexander
- Imbert, G.F.
- Imbrie, Andrew
- Inghelbrecht, Desire-Emile
- Ingoldsby, Tom
- Inness, Peter
- Ioannidis, Yannis
- Ippolito, Michael
- Ippolitov-Ivanov, Mikhail
- Ireland, John
- Isaac, Heinrich
- Isorard, Nicolo (Nicolo)
- Israelian, Martunik
- Israël-Meyer, Pierre
- Iturralde, Pedro
- Ivanov-Radkevich, Nikolai
- Ivanovs, Janis
- Ives, Charles
- Ives, Grayston