In Nairobi slums, maternal care services are often inadequate, leading to high rates of maternal and neonatal mortality. A mixed-methods approach including surveys, focus groups, and observational studies was employed to assess CHW practices and knowledge gaps. Training programmes for CHWs have the potential to enhance maternal health outcomes in Nairobi slums by addressing knowledge gaps and improving service delivery. Promote sustained training and continuous support for CHWs, with community engagement as a key component of future initiatives.