- Ollie HalsallFormed / started: 14 March 1949Split up / ended: 29 May 1992
- Oscar HarrisonBorn in: BirminghamDecade started: 1960s
- Ozzy OsbourneFormed / started: 3 December 1948Split up / ended: 22 July 2025
- Ozzy OsbourneBorn in: Marston GreenDecade started: 1960s