Harmful traditional practices (HTPs) are forms of gender-based violence, sustained by tradition, that are destructive to the well-being of women and girls subjected to them and to their communities’ development prospects. HTPs are often seen as primarily issues in rural areas, but the available evidence suggests a more nuanced picture. This brief seeks to better understand the drivers of HTPs in urban areas and the most effective interventions to address them by reviewing the available evidence on three common HTPs: child, early, and forced marriage; female genital mutilation/cutting; and female infanticide and feticide. Although more research is needed to bridge several key knowledge gaps, HTPs clearly remain prevalent in many urban settings. Also, we find growing evidence on what types of interventions are effective and what factors development partners should consider when designing programming and policies to eliminate HTPs. You can read the report on the US Agency for International Development’s Urban-links website.