This paper provides a comprehensive analysis of Southeast Asian countries' responses to the COVID-19 pandemic, particularly focusing on Malaysia, Singapore, Thailand, the Philippines, Indonesia, and Myanmar. The primary objective is to explore how the pandemic has evolved in these nations, how the respective healthcare delivery systems responded, and the current COVID-19 status within each country. It presents epidemiological trends and governmental strategies adopted in combating the pandemic. The paper also outlines lessons learned and future challenges, highlighting key areas like global health diplomacy, the need for collaboration, clear government agency communication, and a stance against social discrimination. It culminates in an assessment of the postpandemic landscape, discussing the transformation of public health policies and the socio-economic implications of pandemic management.