Published by EngenderHealth and the United Nations Population Fund, this guide is meant for anyone who may be engaged in developing or managing a project or programme to engage men in sexual and reproductive health and rights. It emphasizes the importance of using a gender lens when planning and programming men’s engagement in sexual and reproductive health and rights (SRHR), including family planning—which means engaging men as clients of SRH services, as supportive partners (to their intimate partners), and as agents of change in terms of SRHR. This guide is based on the premise that gender norms and how men and women express them can affect their SRH behaviour.