- Hersch, Ralph1
- Hersh, Ralph3
- Hertig, Renee1
- Hess, Benton1
- Heussenstamm, George1
- Hill, William H., 1925-19981
- Hillebrecht, Hildegard, 1927-1
- Hiller, Lejaren, 1924-19941
- Hillyer, Howard1
- Hindemith, Paul, 1895-19634
- Hines, Roy1
- Hoagland, Diana1
- Hobson, Bruce, 1943-1
- Hodeir, André, 1921-20113
- Hodkinson, Sydney1
- Hoffman, Allen, 1942-1
- Hoffman, David (Cellist)1
- Hoffman, Stanley, 1929-2
- Hofmann, Leopold, 1738-17931
- Hoiby, Lee2
- Hollander, John10
- Holm, Einar (Cellist)1
- Holtz, Deborah (Violist)3
- Holzman, David1
- Hopf, Gertraud1
- Hopkins, Donald, 1931-2
- Hopkins, Gerard Manley, 1844-18893
- Hopkins, Kenyon1
- Hosticka, Frank1
- Houllif, Murray1
- Housman, A. E. (Alfred Edward), 1859-19361
- Hovda, Eleanor, 1940-1
- Hovhaness, Alan, 1911-20001
- Howard, Al1
- Huggler, John2
- Humble, Keith1
- Humphrey, Doris, 1895-19583
- Hunkins, Arthur B., 1937-2
- Hurley, Laurel1
- Husa, Karel, 1921-20161
- Hübner, Carla3
- Hyde, Peter1
- Hymovitz, Edwin3
- Ibsen, Henrik, 1828-19061
- Ichiyanagi, Toshi, 1933-20221
- Ifukube, Akira, 1914-20061
- Illosovay, Elsor von, 1937-1
- Imbrie, Andrew, 1921-20071
- Ingraham, Paul1
- Inter Nationes. issuing body1
- Israel, Theodore, 1927-19873
- Ivanoff, Alexandra1
- Ives, Charles, 1874-19544
- Jacobi, Frederick, 1891-19521
- Jacobs, Larry (Percussionist)1
- Jacobs, Paul, 1930-19831
- Jacobson, Glenn2
- Jekowsky, Barry2
- Jenkins, Newell1
- Johannesen, Grant1