For women and girls in crisis settings, family planning is one of the most life-saving, empowering, and cost-effective interventions possible. And demand for contraception is fierce, with many women and couples in humanitarian settings expressing the desire to space or limit pregnancies. If we are truly to leave no one behind, we must ensure that voluntary, rights-based family planning programs and a wide range of modern contraceptive methods are available and accessible to populations affected by or at risk of crisis.