- Ince, Kamran3
- Incredible String Band3
- Ingraham, Paul1
- Interdenominational Theological Center (Atlanta, Ga.)1
- International Institute of Rural Reconstruction1
- Ippolito, Carmela4
- Irving, George S.1
- Isle of Wight Festival1
- Israel, Theodore, 1927-19873
- Ivanoff, Alexandra1
- Ives, Charles, 1874-19544
- Jackson, D. D., 1967-1
- Jacobi, Frederick, 1891-19521
- Jacobs, Larry (Percussionist)1
- Jacobs, Paul, 1930-19831
- Jacobson, Glenn2
- James, Dick1
- Jekowsky, Barry2
- Jenkins, Newell1
- Jeong, Yoon-joo6
- Jeong, Yoon-joo 1918-4
- Jerry Brewster-Larry Vance Quintet1
- Jethro Tull (Musical group)2
- Johannesen, Grant1
- John, Elton1
- Johns, Stephen (Tubist)2
- Johnson, Hunter, 1906-19981
- Johnson, Lockrem, 1924-19771
- Johnson, Robert, 1911-19381
- Johnson, Thomas (Composer)1
- Johnson, Thor3
- Johnston, Ben1
- Johnston, Donald (Baritone)1
- Johnston, LeRoy, 1938-20181
- Jolas, Betsy1
- Jolles, Jerome, 1928-1
- Jolles, Susan3
- Jolley, David1
- Jones, Calvin (Double bassist)1
- Jones, Charles, 1910-19971
- Jones, Elayne1
- Jones, Elvin1
- Jones, George (Clarinetist)1
- Jones, Harold, 1934-20151
- Jones, Hettie2
- Jordan, Irene, 1919-20161
- Jorn, Asger, 1914-19734
- Joyce, James, 1882-19412
- Juilliard Chorus2
- Juilliard Orchestra4
- Juilliard Percussion Orchestra1
- Juilliard String Quartet1
- Juvelier, Aaron1
- KBS Kyohyang Aktan1
- KRWG-FM (Radio station : Las Cruces, N.M.)1
- KUSC (Radio station : Los Angeles, Calif.)1
- Kaczynski, Adam1
- Kagan, Gerald1
- Kagel, Mauricio1
- Kagen, Sergius1