| Subcategories | | Hagen, Daron Aric | Hagen, Earle | Haieff, Alexei Vasilievich | Hajibeyov, Uzeyir | Hall, Gregory | Halle, Adam de la |
| Hallgrímsson, Haflidi | Halévy, Jacques Fromental | Hamerik, Asger | Handel, George Frederic | Hannah, Ron | Hanon, Charles-Louis |
| Hansen, Jan Erik | Hanson, Howard | Harbison, John | Hardin, Louis@ | Harris, David | Harris, LeRoy Ellsworth |
| Harrison, Lou | Hartmann, Johan Peter Emilius | Hasse, Johann Adolph | Hassler, Hans Leo | Hastings, Thomas | Haydn, Franz Joseph |
| Haydn, Johann Michael | Heggie, Jake | Heinichen, Johann David | Heinrich, Anthony Philip | Heise, Peter | Heller, Stephen |
| Hely-Hutchinson, Christian Victor | Hensel, Fanny Mendelssohn@ | Henselt, Adolf von | Henze, Hans-Werner | Herrmann, Bernard | Hertel, Johann Wilhelm |
| Hervé@ | Hildegard of Bingen@ | Hill, Alfred | Hillborg, Anders | Hiller, Ferdinand | Hiller, Johann Adam |
| Hilton, John, the Elder | Hilton, John, the Younger | Himmel, Friedrich Heinrich | Hindemith, Paul | Hisaishi, Joe | Hoffmann, E. T. A.@ |
| Hoffmeister, Franz Anton | Hoffnung, Gerard | Hoiby, Lee | Holbrooke, Joseph Charles | Holmboe, Vagn | Holmès, Augusta Mary Anne |
| Holst, Gustavus Theodore von | Holten, Bo | Honegger, Arthur | Hook, James | Horner, James | Horowitz, Vladimir@ |
| Hovhaness, Alan | Howard, James Newton | Howells, Herbert Norman | Hummel, Johann Nepomuk | Humperdinck, Engelbert | Husa, Karel |
| Hutchinson, Brenda | Hylton Edwards, Stewart | Hérold, Louis Joseph Ferdinand | Höller, Karl | Højsgaard, Erik |
