| Jack | 1992 | November 2002 | — |
| Jacobites | 1983 | 2006 | UK rock band formed by Nikki Sudden & Dave Kusworth |
| Jade | 1970 | 1971 | — |
| Jade Warrior | 1970 | — | — |
| JAG | 2003 | — | — |
| Jaguar | December 1979 | — | — |
| Jah Wobble’s Invaders of the Heart | 1983 | — | — |
| James | 1982 | — | Manchester indie rock band |
| Jamiroquai | 1992 | — | — |
| Janison Edge | 1997 | — | — |
| Jansen Barbieri Karn | 1993 | 2001 | — |
| Janus | 1971 | — | — |
| Japan | 1974 | 16 December 1982 | UK new wave band |
| Jardine | February 1969 | — | — |
| Jasmine Minks | 1983 | — | — |
| Jasper | 1969 | 1969 | — |
| JAWS | 2012 | — | — |
| Jeff Beck Group | January 1967 | 1972 | — |
| Jellicoe | 1996 | 2001 | — |
| Jellybread | 1968 | — | — |
| Jellyfish Kiss | 1986 | — | — |
| Jeremy Pie | 1 January 2024 | — | — |
| Jerusalem | 1967 | 1972 | — |
| Jesu | 2003 | — | — |
| Jesus Jones | August 1988 | — | — |
| Jethro Tull | December 1967 | — | — |
| Jetplane Landing | 1999 | — | — |
| Jigsaw | 1966 | 1981 | UK pop band, known for Sky High |
| Jimmy Page & Robert Plant | 1994 | 1998 | — |
| Jimmy the Squirrel | 2005 | — | — |
| Jive Bunny & the Mastermixers | 1988 | — | — |
| JK Historian | 1 January 2018 | — | — |
| Joanna Gruesome | 2010 | — | — |
| Jody Grind | November 1966 | — | — |
| Joe Lean & The Jing Jang Jong | 2007 | 2010 | — |
| Joe Strummer & the Mescaleros | 1999 | 2003 | — |
| John Mayall & the Bluesbreakers | 1963 | 2008 | — |
| Johnny Boy | 2002 | 2006 | — |
| Johnny Foreigner | December 2005 | — | — |
| Johnny Kidd and the Pirates | 1959 | 2010 | — |
| Johnny Moped | 1974 | 1978 | — |
| Johnny Truant | 2002 | 2008 | — |
| John’s Children | 1966 | 1968 | — |
| Joy Division | January 1978 | May 1980 | English post-punk band |
| Joy of Life | 1984 | 1988 | — |
| Judas Priest | 1969 | — | — |
| Juicy Lucy | 1969 | — | — |
| Julian’s Treatment | 1969 | 1973 | — |
| Jump | 1990 | — | — |
| Jungle Doctors | 18 November 2010 | — | — |
| Just Add Monsters | 2008 | — | — |
| Just By Chance | 9 September 2009 | 1 June 2014 | — |
| Just Three Guys | April 2011 | — | — |