Active Labour Market Programmes (ALMPs), which form important components of employment support policies around the world, have been found to improve mental health and wellbeing of participants. However, it remains unclear how these health effects compare with the effects of different types of employment for men and women. Using 1991–2019 panel data in the UK, we find that unemployed women derive similar mental health benefits from ALMPs compared with employment. Unemployed men also benefit from ALMPs but obtain significantly more health benefits from formal employment. Such benefits are particularly pronounced in full-time, permanent and upper/middle-status jobs. Further analyses reveal that programmes that deliver human capital training have larger mental health benefits than employment assistance ALMPs. These findings provide a more nuanced understanding of the mental health impacts of ALMPs compared with different types of employment, and highlight the need for a more gender-sensitive design in labour market interventions.