The 1st World Conference on Health in Detention was held on 27-29 June 2022 in Geneva, Switzerland. The conference was organized by the ICRC in partnership with the ICPA, the University of Melbourne’s Justice Health Unit and the WEPHREN. The purpose of the conference was to raise awareness among and improve knowledge and skill of key stakeholders in detention settings, and to provide a platform for dialogue and international collaboration. This report provides the summary of the content of the conference, feedback of the participants and the conference’s conclusions assembled into the 30 sets of recommendations. These recommendations should provide further guidance to people and organizations who seek to strengthen the health systems in detention and improve the health of people deprived of their liberty.