This report investigates the rapidly evolving field of public communications for the Association of Southeast Asian Nations (ASEAN), focusing on the application of data analytics and behavioural insights to enhance the strategies. It addresses the basis, current trends, actions taken by various ministries across ASEAN, case studies of successful implementation, challenges faced, and outlook for this rapidly changing field. The report is intended primarily for ASEAN Sectoral Bodies, although it will be relevant to media industry representatives, and stakeholders of ASEAN.