Maternal mortality remains a critical public health concern, with approximately 800 women dying daily due to pregnancy- or childbirth-related complications. Inadequate birth preparedness and complication readiness (BPCR) significantly contribute to these fatalities, particularly in sub-Saharan Africa and South Asia. BPCR interventions aim to equip expectant mothers with essential knowledge on danger signs, delivery planning, skilled care utilisation, and emergency preparedness. Effective implementation of nurse-led training programs enhances maternal awareness, facilitates timely medical care, and reduces delays in recognising labour onset and complications. This study evaluates the effectiveness of nurse-led training on birth preparedness knowledge among expectant mothers in Lagos, Nigeria, highlighting its potential to improve maternal and neonatal outcomes by promoting informed decision-making and proactive health-seeking behaviours.