This study examines the role of the Parents Teachers Association (PTA) in the development of secondary school students in the Agege Local Government Area of Lagos State, Nigeria. Through a descriptive survey design, data was collected from one hundred teachers and parents across five selected public secondary schools. The study investigates parents’ and teachers’ perceptions of the PTA’s goals, the impact of parent involvement on students’ academic performance, factors influencing parent involvement, and the extent of parent involvement in school administration. Findings reveal differences in perceptions between parents and teachers regarding the PTA’s roles, highlighting the need for improved communication and collaboration. Additionally, the study identifies various factors that promote or inhibit parent involvement, shedding light on areas for improvement. The findings underscore the importance of active parent involvement in enhancing students’ educational outcomes and school development. Recommendations are provided for educators, school administrators, and policymakers to enhance parent-teacher partnerships and improve students’ academic achievements.