Persistent inequities in maternal and perinatal outcomes for Black families in Ontario underscore the need for high-quality, ethically collected sociodemographic (SD) and social determinants of health (SDH) data. As Ontario’s perinatal and child health registry, BORN Ontario plays a key role in supporting the safe collection, governance, and use of these data to inform clinical care, public health planning, research, and system-level decision-making. This webinar will explore how SD/SDH and race-based data within the BORN Registry are being used to better understand inequities in Black maternal and perinatal health outcomes, including current evidence, limitations, and data governance considerations.