The band's 'classic' lineup was the line-up that lasted 1978-1982. 'Classic' members are mentioned in bold. Unlike many heavy metal bands, Girschool never had a permanent lead vocalist, except for a brief 1985 period, with Jackie Bodimead as vocalist. Vocal duty was shared amongst Enid Williams, Kim McAuliffe, and to a lesser extent, Kelly Johnson.
1975–1978 (as Painted Lady)
- Enid Williams - bass, vocals
- Deirdre Cartright - lead guitar (1977)
- Kim McAuliffe - rhythm guitar, vocals
- Val Lloyd - drums (1977)
1978–1982
- Enid Williams - bass, vocals
- Kelly Johnson- lead guitar, vocals
- Kim McAuliffe - rhythm guitar, vocals
- Denise Dufort - drums
1982 - 1984
- Gil Weston - bass, vocals
- Kelly Johnson- lead guitar, vocals
- Kim McAuliffe - rhythm guitar, vocals
- Denise Dufort - drums
1984
- Gil Weston - bass, vocals
- Cris Bonacci - lead guitar
- Kim McAuliffe - rhythm guitar, vocals
- Denise Dufort - drums
1985
- Jackie Bodimead - lead vocals (1984-1985)
- Gil Weston - bass, vocals
- Cris Bonacci - lead guitar
- Kim McAuliffe - rhythm guitar, vocals
- Denise Dufort - drums
1986 - 1987
- Gil Weston - bass, vocals (1982-1987)
- Cris Bonacci - lead guitar
- Kim McAuliffe - rhythm guitar, lead vocals
- Denise Dufort - drums
1987–1988
- Tracey Lamb - bass, vocals
- Cris Bonacci - lead guitar
- Kim McAuliffe - rhythm guitar, lead vocals
- Denise Dufort - drums
1990 (as She Devils)
- Toyah Willcox - lead vocals
- Enid Williams - bass, vocals
- Cris Bonacci - lead guitar
- Kim McAuliffe - rhythm guitar, vocals
- Denise Dufort - drums
1991 (as Strange Girls)
- Enid Williams - bass, vocals
- Cris Bonacci - lead guitar
- Kim McAuliffe - rhythm guitar, lead vocals
- Lydie Gallais - drums (1991)
- Toyah Wilcox - lead vocals
1992
- Jackie Carrera- bass (1992)
- Cris Bonacci - lead guitar (1984-1993)
- Kim McAuliffe - rhythm guitar, lead vocals
- Denise Dufort - drums
1993–1999
- Tracey Lamb - bass, vocals (1988-1989, 1993-2000)
- Kelly Johnson- lead guitar, vocals (1978-1984, 1993-2000)
- Kim McAuliffe - rhythm guitar, vocals
- Denise Dufort - drums
2000–present - (current lineup)
- Enid Williams - bass, vocals (1978-1982, 2000-present)
- Jackie Chambers - lead guitar (2000-present)
- Kim McAuliffe - rhythm guitar, vocals (1978-present)
- Denise Dufort - drums (1978-present)