The geopolitical dynamics of Southeast Asia after the COVID-19 pandemic have experienced a number of significant changes that have influenced political, economic and social strategies in this region. As Southeast Asian countries continue to recover from the impact of the pandemic, they are facing new challenges, including global economic uncertainty and great power dynamics between the United States and China. One important aspect in Southeast Asian geopolitics is the competition between the US and China. Post-pandemic, China’s influence continues to increase, especially through the Belt and Road Initiative (BRI). Countries such as Indonesia, Malaysia and the Philippines have shown interest in getting involved in infrastructure projects supported by China. However, this dependence is also a source of concern, given the potential downside in the form of debt and increased political influence from Beijing. Meanwhile, the US is trying to strengthen its position through the Indo-Pacific initiative which aims to support allied countries in Southeast Asia. By offering cooperation in the security and economic fields, the US seeks to prevent Chinese domination and maintain regional stability. The increase in military ties between the United States and countries such as Vietnam and the Philippines indicates strategic moves to counter Beijing’s influence. Domestically, Southeast Asian countries are facing the challenge of post-pandemic economic recovery. The tourism sector, which was previously the driving force behind the economies of many countries, is now in decline and requires innovative strategies to recover. Countries such as Thailand and Indonesia are focusing on digital transformation and green economic development to attract investment and create new jobs. The social dynamics are no less interesting. The pandemic has accelerated changes in people’s living patterns, especially in terms of digitalization. The increased use of information and communications technology creates new opportunities, but also raises challenges such as shifts in employment and education. Non-traditional security challenges are also attracting increasing attention. The increase in regional conflicts, such as those in Myanmar and the issue of separatism in several regions, shows that political stability is a top priority. Regional cooperation through ASEAN is the key to resolving conflicts and promoting dialogue between member countries. Climate change and food security are also major issues that the people of Southeast Asia must face. As one of the regions most vulnerable to the impacts of climate change, countries in this region are expected to strengthen cooperation in dealing with natural disasters and developing sustainable policies. Through a comprehensive analysis of geopolitical dynamics and various emerging issues, it is clear that post-pandemic Southeast Asia will continue to experience transformation. International cooperation, innovation and adaptation are the keys to facing the challenges of this new era. Through a collaborative approach, Southeast Asian countries can increase their resilience and development on the global stage.