jats:secjats:titleObjective</jats:title>jats:p Reports identify that sexual harassment is troublingly pervasive in the NHS. Active bystander training (ABT) has been promoted to address sexual harassment, alongside other forms of poor behaviour, discrimination, and harassment. We explore ABT across all English NHS Trusts and determine whether the programmes address sexual misconduct in the training content. </jats:p></jats:sec>jats:secjats:titleDesign</jats:title>jats:p Freedom of Information requests asking whether Trusts offer ABT, and if so, about the programme content and delivery, and to NHS England on centrally commissioned ABT. </jats:p></jats:sec>jats:secjats:titleSetting</jats:title>jats:p 213 NHS Trusts in England, and NHS England. </jats:p></jats:sec>jats:secjats:titleParticipants</jats:title>jats:p Not applicable. </jats:p></jats:sec>jats:secjats:titleMain Outcome Measure</jats:title>jats:p Provision of ABT, and presence of sexual harassment content in the training. </jats:p></jats:sec>jats:secjats:titleResults</jats:title>jats:p 199 Trusts responded by August 2022. Of these, 35 Trusts provide ABT, the majority of which deliver content that is not specific to sexual misconduct, are in London, outsource training using private providers, and only provide workshops on an opt-in basis. One Trust offers a standalone ABT module on sexual harassment. Private providers prohibit Trusts from sharing training material, inhibiting content analysis and evaluation. Among the 163 Trusts without ABT programmes, only 23 (13%) have plans to implement training. </jats:p></jats:sec>jats:secjats:titleConclusions</jats:title>jats:p ABT is underutilised in the NHS, despite being identified as an effective intervention in other settings like the military, higher education, and government workplaces. Studies should explore whether wider NHS adoption is warranted. Robust monitoring and evaluation processes are critical to strengthening the available literature regarding the effectiveness of ABT in the healthcare context and engaging in global knowledge sharing across health systems. </jats:p></jats:sec>