Keep Prisons Single Sex
Keep Prisons Single Sex (KPSS) was a campaign launched in 2020 to defend the sex-based rights of women held in prison in England, Wales and Scotland. It argued that women in custody — many of whom have histories of male violence and abuse — have the right to be accommodated away from male prisoners, regardless of how those prisoners identify. The campaign also pressed for sex registered at birth to be recorded and used in criminal-justice data collection, risk assessment and service provision. Although the UK campaign closed in 2024, its sister campaign in the United States continues this work.
More sister projects
Girls Not Brides: a global partnership of 1,400+ civil society organisations in nearly 100 countries dedicated to ending child marriage.
Femmes for Freedom: Dutch organisation fighting for the freedom and rights of (bicultural) girls and women, against marital captivity and forced marriage.
Women's Declaration International (UK): campaign to Restore Safeguarding – End Sex Falsification, calling to repeal the Gender Recognition Act 2004.
Sex Matters: UK human-rights charity promoting clarity about sex in law, policy and language to protect everybody's rights.
LGB Alliance: UK charity advocating for lesbians, gay men and bisexual people, with community support, a helpline and campaigns on same-sex rights.
Women's Liberation Front (WoLF): US non-profit advancing women's and girls' sex-based rights through legal advocacy, policy work and education.
Women's Rights Network (WRN): UK grassroots groups campaigning for women's rights and safety in sport, single-sex spaces and public life.
HeCheated: an archive documenting male athletes in female sports categories and the medals, records and places female athletes lost as a result.
Collective Shout: Australian grassroots movement against the objectification of women and the sexualisation of girls in media, advertising and culture.
Frauenheldinnen e.V.: German non-profit offering legal aid to women and campaigning for women's rights and children's safety.
Voorzij: Dutch foundation promoting critical, evidence-based thinking on equality, women's rights and youth gender care.
No Self ID Taiwan: advocacy group opposing gender self-identification in Taiwanese law to protect women's safety, privacy and rights.
Contra el Borrado de las Mujeres: Spanish feminist alliance opposing the replacement of biological sex with gender identity in law and statistics.
Athena Forum: European charity protecting sex-based rights in law, policy and civil society through advocacy, research and public engagement.
UN Special Rapporteur on violence against women and girls: independent UN human-rights expert, mandate since 1994, reporting on all forms of violence.
Spinifex Press: independent Australian feminist publisher (est. 1991) and the English-language publisher of Rebel Girls.
Diametric Verlag: German publisher of gender research, women's studies and women's health, and publisher of the German Rebel Girls edition.
Sybilla Claus: anthropologist, journalist and author behind the Rebel Girls project, with the books Gender Rebels (2024) and Rebel Girls (2026).
Uitgeverij Het Haantje: independent Dutch publisher of Gender Rebels, the book that started the Rebel Girls project. A Rebel Girls sister project.