| J'accuse | | |
| J. Derwort | Netherlands | Male |
| J.A.J. Entreprise | France | |
| J.D. Emmanuel | United States | Male |
| J.D. Wilburn | | Male |
| J.D.M. | | Male |
| J.H. Kocman | | |
| J.J.Burnel | France | Male |
| J.Jasmine | United States | Female |
| J.K.Randall / Barry Vercoe / Charles Dodge | | |
| j.m.r. and company | United States | |
| J.P. Ward | United Kingdom | Male |
| J.S. Laboratories (Jittery Sphincter Laboratories) | United States | Male |
| J.T. Bimbo | United Kingdom | |
| Ja Ja Ja | Germany | Male |
| Ja Ja Ja & Die Gesunden | Germany | Male |
| Jaap Blonk | | Male |
| Jaap de Groot | | Male |
| Jabberwockies | Germany | Male |
| Jabir | Spain | Male |
| Jabon | United States | Male |
| Jac & Marc & Jac & Paul | Belgium | Male |
| Jac Berrocal / Marie France / Jack Belsen | | |
| Jacek/Project Q | | |
| Jacinthebox | Belgium | Male |
| Jack & The Rippers | Switzerland | Male |
| Jack Endino | United States | Male |
| Jack Hurwitz | | Male |
| Jack Kerouac | | Male |
| Jack Kerouac and William S. Burroughs | | Male |
| Jack Logan | | Male |
| Jack Marlow | | |
| Jack Marlow & Yannick Journaux | France | Male |
| Jack or Jive | Japan | |
| Jack Saunders | | Male |
| Jack Schrage | | Male |
| Jack Wright | Switzerland | Male |
| Jack Wright & Andreas Stehle | United States | Male |
| Jackalope | | |
| Jackdaw with Crowbar | | Male |
| Jacki Apple | United States | Female |
| Jackson Mac Low | United States | Male |
| Jackson Mac Low / Bruce Andrews | | |
| Jackson Mac Low And Anne Tardos | United States | Male |
| Jacky Schreiber | | Male |
| Jacqueline Tarkieltaub | | Male |
| Jacques Bekaert | | Male |
| Jacques Berrocal | France | Male |
| Jacques Berrocal / Dominique Coster / Roger Ferlet | France | Male |
| Jacques Donguay | France | Male |
| Jacques L. | France | Male |
| Jacques Lejeune | France | |
| Jacques Lizène | Belgium | Male |
| Jacques Van Erven | Netherlands | Male |
| Jad Fair | United States | Male |
| Jad Fair & Tom Recchion & Ant Farm | Netherlands | Male |
| Jah Maisel | Germany | Male |
| JaJa HoLe | United States | Male |
| Jake Berry | | Male |
| James Boring | United States | Male |
| James Call | | Male |
| James Chance And The Contortions | United States | Male |
| James Coleman | | Male |
| James Edwards | United States | Male |
| James Fulkerson | United States | Male |
| James Hardman | United States | Male |
| James Hill | United States | Male |
| James Jarvis | | Male |
| James Joyce | Ireland | Male |
| James Koller | United States | Male |
| James Richard Oliver | | Male |
| James St. Vrrain | | Male |
| James Tenney | Canada | Male |
| James Whelan & Andrew Pinches | | Male |
| Jamnous Ensemble/Die Rache | | Male |
| Jan Blondeel / Guy De Bièvre | Belgium | Male |
| Jan Brock | United States | Male |
| Jan Dibbets | Netherlands | Male |
| Jan Frichot, Herb Ernst | United States | |
| Jan Iwers | | |
| Jan Rys | | Male |
| Jan Steele | United Kingdom | Male |
| Jan Steele / John Cage | | Male |
| Jan Svankmajer | | |
| Jan Van Den Dobbelsteen | | |
| Jan W. Morthenson / Arne Mellnäs / Lars Gunnar Bodin | Sweden | Male |
| Jana Haimsohn | | Male |
| Jane | Germany | |
| Jane Bond And The Undercover Men | | Male |
| Jane Timberlake | | |
| Jani Christou | Greece | Male |
| Janos Urban | Switzerland | Male |
| Janus | Germany | Male |
| Japanese Title | Japan | Male |
| JAR | Germany | Male |
| JAR & Steve Ainsworth | Germany | Male |
| Jar / Lord Litter | Germany | Male |
| Jar and Lord Litter | Germany | Male |
| Jarboe | | Male |
| Jarl Hammarberg-Akesson | Sweden | Male |
| Jaroslav Supek | Jugoslawien | |
| Jas H. Duke | Australia | Male |
| Jason Martz | | Male |
| Jason Walter & Rotcod Zzaj | | Male |
| Jason Walters & Rotcod Zzaj | | Male |
| Jaws of the Flying Carpet | | Male |
| Jay & Stuart | United States | Male |
| Jay Allison | United States | |
| Jay Scott Neale & Emerald Web | United States | Male |
| Jay T. Yamamoto | United States | Male |
| Jay T. Yamamoto / Chris Martin | United States | Male |
| Jaywalker | | Male |
| Jazz & Get Fat | United States | Male |
| JD3 | United States | Male |
| Jean Baudrillard | | |
| Jean Dubuffet | France | Male |
| Jean Eichelberger Ivey | | |
| Jean Erdman Campbell | United States | Female |
| Jean Gilbert | Germany | Male |
| Jean Guérin | France | Male |
| Jean Guillou | France | Male |
| Jean Louis Behmente | | Male |
| Jean Louis Houchard | France | Male |
| Jean Luc Auberjonois | Canada | |
| Jean Piché | Canada | Male |
| Jean Pierre Turmel | France | Male |
| Jean Schwarz | France | |
| Jean Tinguely | United Kingdom | Male |
| Jean-Baptiste Barrière | France | Male |
| Jean-Claude Charlier Et Son Orchestre | Belgium | Male |
| Jean-Claude Risset | France | Male |
| Jean-François Bory | France | Male |
| Jean-Louis Belmonte | | Male |
| Jean-Louis Belomonte | | |
| Jean-Louis Houchard & Masami Akita | France | Male |
| Jean-Luc Parant | France | Male |
| Jean-Paul Curtay | | Male |
| Jean-Paul Curtay & John Cage | | Male |
| Jean-Paul Thenot | France | Male |
| Jean-Pierre Espil | | Male |
| Jean-Vincent Huguenin | | Male |
| JEEM | United States | Male |
| Jeepees Soap / Hidden Faces | | |
| Jeff Battis | | Male |
| Jeff Carney | | Male |
| Jeff Central | United States | Male |
| Jeff Central & Chris Phinney | United States | Male |
| Jeff Central & Pat Grafik | United States | Male |
| Jeff Greinke | United States | Male |
| Jeff Greinke & Pierre Perret | | Male |
| Jeff Greinke & R. Angus | United States | Male |
| Jeff Kelly | | Male |
| Jeff Laryngo | France | Male |
| Jeff Van Auken | | Male |
| Jeffrey Morgan | United States | Male |
| Jeffrey Morgan / Jim Willett | United States | Male |
| Jeg Falt | Norway | Male |
| Jellyfish On Vacation | United Kingdom | Male |
| Jennifer Cobbing | United Kingdom | Female |
| Jennifer Wolski | | |
| Jenny Cochran | France | Male |
| Jeph Jerman | | Male |
| Jeph Jerman / Hal McGee | United States | Male |
| Jeph Jerman, Steve Beckner, Bob Blaize, Dave Clark | United States | Male |
| Jeremy Adler | United Kingdom | Female |
| Jeremy Clarke | United Kingdom | Male |
| Jerman & friends, Jeph | | |
| Jeroen Scheifes | | Male |
| Jerome Joy | | |
| Jerome Rothenberg | United States | Male |
| Jerry Aronson | | |
| Jerry Cynimbo | Sweden | Male |
| Jerry Modjeski | | Male |
| Jerry Woodsford Kane | | Male |
| Jesse Glass | United States | Male |
| Jessica Hagedorn | | Male |
| Jester of Chaos | United States | Male |
| Jesus and the Mary Chain | | |
| Jesus Drum | | Male |
| Jesus Penis | | Male |
| Jesús Villa-Rojo | Spain | Male |
| Jethro Tull | | |
| JFK | United Kingdom | Male |
| JFK & Phaeton Dernière Danse | United Kingdom | Male |
| JGJGJGJG (= Cris Cheek, Lawrence Upton, P.C Fencott) | United Kingdom | Male |
| Jim Banner | | |
| Jim Bartz | United States | Male |
| Jim Binkley | United States | Male |
| Jim Brown | United States | Male |
| Jim French with Diamánda Galás and Henry Kaiser | United States | |
| Jim Goodwin & Gary Warner | Australia | Male |
| Jim Nollman | United States | Male |
| Jim O'Rourke | United States | Male |
| Jim Pomeroy | | |
| Jim Price | | Male |
| Jim Raddatz | | Male |
| Jim Rose Flying Circus | | |
| Jim Rosenberg | United States | Male |
| Jim Steele | | Male |
| Jim Wafer | Netherlands | Male |