- Jagajewski, Adam1
- James, Kedrick1
- Janes, Mariner1
- Jarolim, Edith1
- Jarrett, Keith1
- Jess1
- Joe, Rita1
- John Giorno Band1
- Johnson, Joe1
- Johnston, Eve1
- Jone, Ron1
- Jones, D. G. (Douglas Gordon)1
- Jones, Jennifer1
- Joplin, Janis1
- Jordan, Sheila1
- Kamboureli, Smaro1
- Kandel, Lenore1
- Kaplinsky, Jaan1
- Kaprow, Allan1
- Katz, June1