This strategic planning guide emphasizes the crucial role of involving men and boys in family planning to improve reproductive health outcomes. It outlines a strategic process for program managers and decision-makers to identify effective investments in male engagement, addressing gender norms and promoting gender equality. The guide highlights the importance of respecting women’s autonomy while encouraging men to participate as contraceptive users, supportive partners, and advocates for family planning. By fostering open communication and equitable decision-making within couples, the guide aims to transform social norms and enhance the uptake of family planning services. The article underscores that engaging men and boys is essential for creating supportive environments where reproductive health decisions are made collaboratively and responsibly.