- Johns, Stephen (Tubist)2
- Johnson, Hunter, 1906-19981
- Johnson, Lockrem, 1924-19771
- Johnson, Thomas (Composer)1
- Johnson, Thor3
- Johnston, Ben1
- Johnston, Donald (Baritone)1
- Johnston, LeRoy, 1938-20181
- Jolivet, André, 1905-19741
- Jolles, Jerome, 1928-1
- Jolles, Susan3
- Jolley, David1
- Jones, Charles, 1910-19971
- Jones, Elayne1
- Jones, George (Clarinetist)1
- Jones, Harold, 1934-20151
- Jordan, Irene, 1919-20161
- Joyce, James, 1882-19413
- Juilliard Chorus2
- Juilliard Orchestra2
- Juilliard String Quartet2
- Juvelier, Aaron1
- Kagan, Gerald1
- Kagen, Sergius1
- Kahn, Erich Itor, 1905-19561
- Kahn, Sonja1
- Kahn, Sue Ann1
- Kahn, Susan (Flute player)1
- Kalajian, Berge, 1924-20021
- Kalisch, Joan4
- Kalisch, Shoshana1
- Kalish, Gilbert8
- Kansas City Philharmonic Orchestra1
- Kantarjian, Gerard, 1931-20211
- Kaplan, Elliot1
- Kaplan, Herbert1
- Kaplan, Lewis14
- Kaplan, Melvin2
- Karas, Sperie1
- Karimi, Mahmoud, 1927-1
- Karis, Aleck1
- Karlins, M. William1
- Karman, Lotte3
- Kass, Jon1
- Katz, George1
- Katz, Mary1
- Kaye, Milton1
- Kazantzakis, Nikos, 1883-19571
- Keil, Sidney1
- Kella, John Jake1
- Kellogg, Peter Paul, 1899-19752
- Kelly, Robert, 1916-20071
- Kennedy, X. J2
- Kent, Edward1
- Kerouac, Jack, 1922-19691
- Kessner, Daniel, 1946-1
- Kessner, Dolly, 1946-1
- Kibler, Belva, 1913-19831
- Killmer, Richard1
- Kilpatrick, Jack Frederick1