| The Hoosiers | 2003 | — | — |
| The Horrors | 2005 | — | — |
| The Hours | 2004 | — | — |
| The House of Love | 1986 | — | — |
| The Housemartins | 1983 | 1988 | — |
| The Human League | 1977 | — | — |
| The Hunna | 8 October 2015 | — | — |
| The Icicle Works | 1980 | — | — |
| The Ignerents | 1977 | — | — |
| The Incredible Kidda Band | 1977 | — | — |
| The Incredible String Band | 1966 | 1974 | — |
| The Indelicates | 2005 | — | — |
| The Infernal Sea | 2010 | — | — |
| The Inmates | 1977 | — | — |
| The Insane | 1979 | — | — |
| The Instant Automatons | 1978 | 1982 | — |
| The Instigators | 1980 | — | — |
| The Introze | 1979 | — | — |
| The Ivy League | 1964 | 1975 | — |
| The Jaded Hearts Club | 17 March 2018 | — | — |
| The Jags | 1978 | 1982 | — |
| The Jam | 1976 | 1982 | late 70s/early 80s UK punk/mod revival band |
| The Janskys | 2007 | — | — |
| The Jazz Butcher | 1982 | 1995 | — |
| The JB Conspiracy | 1999 | — | — |
| The Jesus and Mary Chain | 1984 | — | — |
| The Jimi Hendrix Experience | 1966 | June 1969 | — |
| The Jolt | September 1976 | 1979 | — |
| The Julia Set | 1 September 2006 | — | — |
| The Kills | 2000 | — | — |
| The Kingpins | 1965 | 1968 | — |
| The Kinks | 1964 | 1996 | — |
| The KLF | 1988 | May 1992 | British electronic band with several aliases |
| The Knack | 1965 | October 1967 | — |
| The Koobas | 1962 | 1969 | — |
| The Kooks | 2004 | — | UK band |
| The Korgis | 1979 | — | — |
| The K’s | 2016 | — | — |
| The Last Battle | 2009 | — | — |
| The Last Dinosaur | 2006 | — | — |
| The Last Shadow Puppets | 2007 | — | — |
| The Law | 1991 | — | — |
| The Law | 2006 | — | — |
| The La’s | 1983 | 1992 | — |
| The League of Gentlemen | 1980 | 1980 | — |
| The Left Outsides | 2003 | — | — |
| The Legendary Pink Dots | August 1980 | — | — |
| The Libertines | 1997 | — | British indie rock band |
| The Lightning Seeds | 1989 | — | — |
| The Lines | 1976 | — | — |
| The Living Daylights | 1967 | 1968 | — |
| The Locomotives | 1984 | 1990 | — |
| The Long Blondes | 2003 | 19 October 2008 | — |
| The Lords of the New Church | 1982 | 2007 | — |
| The Lost Junktion | 15 June 2011 | — | — |
| The Lotus Eaters | 1982 | — | — |
| The Lovely Eggs | 2006 | — | — |
| The Lurkers | 1976 | — | — |
| The Maccabees | 2004 | 2017 | — |
| The Machines | 1977 | 1978 | — |
| The Magic Numbers | 2002 | — | — |
| The March Violets | 1981 | — | — |
| The Marionettes | 1986 | — | — |
| The Martini Henry Rifles | 2000 | April 2006 | — |
| The Meadows | 1 January 2010 | — | — |
| The Meads of Asphodel | 1998 | — | — |
| The Mekons | 1976 | — | — |
| The Members | 1977 | — | — |
| The Memoirs | 2018 | — | — |
| The Memory Band | 2003 | — | — |
| The Men That Will Not Be Blamed for Nothing | 2008 | — | — |
| The Men They Couldn’t Hang | 1984 | — | — |
| The Metros | 2006 | 17 June 2009 | — |
| The Mighty Boosh | 1998 | — | — |
| The Mighty Lemon Drops | 1985 | 1992 | — |
| The Milk & Honey Band | 1994 | — | — |
| The Mindbenders | 1963 | 1968 | — |
| The Mission | December 1985 | — | gothic rock band |
| The Mock Turtles | 1987 | 1993 | — |
| The Monochrome Set | 1978 | — | — |
| The Moody Blues | 1964 | 2018 | — |
| The Motors | 1977 | 1981 | — |
| The Move | December 1965 | 1972 | British psychedelic rock |
| The Movies | 1974 | — | — |
| The Mummers | 16 June 2006 | — | — |
| The Music | 1999 | 6 August 2011 | — |
| The Mysterines | 1 March 2017 | — | — |
| The Nashville Teens | 1962 | — | — |
| The Nefilim | 1992 | 1996 | — |
| The Nice | 1967 | 1970 | 60s UK rock band |
| The Nightingales | 1979 | — | — |
| The Nosebleeds | 1976 | — | — |
| The Now | 1976 | — | — |
| The Obnoxious UK | 2001 | — | — |
| The One Hundred | 3 May 2008 | — | — |
| The Only Ones | August 1976 | 1982 | — |
| The Open | 2003 | 2006 | — |
| The Opposition | 1979 | 1986 | — |
| The Oppressed | 1981 | — | — |
| The Orchestra (For Now) | March 2023 | — | — |