| Band | Formed / started | Split up / ended | Note |
|---|---|---|---|
| Yachts | April 1977 | 1981 | — |
| Yak | 2 December 1982 | — | — |
| Yazoo | 1982 | 1983 | 80s British synthpop duo, aka Yaz |
| Yeah Yeah Noh | 1984 | — | — |
| Years of Rice and Salt | 7 July 2008 | — | — |
| Yeast | 1996 | 2003 | — |
| Yellow Cafe | 5 May 2018 | — | — |
| Yersinia Pestis | 2003 | — | — |
| Yes | 1968 | — | British progressive rock band |
| Ynkleudherhenavogyon | 2018 | — | — |
| Yossarian | 2010 | — | — |
| You Me at Six | August 2005 | 4 April 2025 | British rock band |
| You Slut! | 2004 | — | — |
| Young Astronaut | 1 January 2007 | — | — |
| Young Disciples | July 1990 | 1992 | — |
| Young Guns | 2005 | — | — |
| Young Knives | 1998 | — | — |
| Young Marble Giants | November 1979 | — | — |
| Younghusband | 2007 | — | — |
| Youth Club for Rich Kids | 8 April 2011 | — | — |
| Youthmovies | 2002 | 2010 | — |
| You’re Smiling Now but We’ll All Turn Into Demons | 2002 | — | — |
| Yuck | 2009 | 15 February 2021 | — |
| Yunioshi | 1 October 2007 | — | — |