The geopolitical dynamics of Southeast Asia are developing rapidly in line with changes in global and regional powers. This region, located between two oceans, is not only rich in natural resources, but also has an important strategic position for international trade routes. In the midst of tensions between major powers such as the United States and China, countries in Southeast Asia are increasingly receiving attention in the world geopolitical arena. One of the main factors influencing this dynamic is the economic growth of countries in the region. The economies of countries such as Indonesia, Vietnam and Thailand are growing rapidly, attracting foreign investment and strengthening their position at the international level. Indonesia, as the largest country in Southeast Asia, plays an important role in regional organizations such as ASEAN and the G20. Meanwhile, Vietnam has emerged as a global production center, replacing many of the roles previously held by China. Maritime security is also a crucial issue in this region. The South China Sea, which is a vital shipping lane, has become an arena for competition between various countries, including China, the Philippines and Malaysia. Overlapping territorial claims create tensions, fueling the need for diplomacy and multilateral cooperation. In this context, ASEAN seeks to become a platform for dialogue and conflict resolution between its members. In addition, the militarization carried out by several countries, especially China, has created a sense of insecurity among neighboring countries. China’s construction of military bases on artificial islands further complicates the situation. Southeast Asian countries must navigate complex diplomatic relations while maintaining their national sovereignty and security. The issue of climate change also has a significant impact on geopolitics in Southeast Asia. Countries in the region are highly vulnerable to natural disasters, such as floods and tropical storms, which can affect political and social stability. Cooperation in addressing environmental challenges is becoming increasingly important, with countries agreeing to collaborate on green initiatives and emission reductions. Globalization trends have a complex impact on Southeast Asia. Deeper economic integration through trade agreements such as the Regional Comprehensive Economic Partnership (RCEP) opens up new opportunities but also challenges. Countries in the region must be in a position to adapt their policies to be able to compete in the global market. The role of technology is also increasingly prominent in the geopolitical dynamics of Southeast Asia. Digital innovation and developments in information technology are changing the way countries interact and do business. Investments in technology can increase competitiveness and drive economic growth, but they also increase tensions between countries competing in the high-tech field, such as China and the United States. Diplomatic discipline is the key to overcoming the complexity of international relations in Southeast Asia. Open dialogue and cooperation between countries is essential to create a stable environment. Through an inclusive approach, countries in the region can overcome shared challenges and exploit existing opportunities, creating a sustainable future. Against a backdrop of rapid global geopolitical change, Southeast Asia is at the crossroads of various powers vying for influence. Countries in the region need to be proactive in responding to change, ensuring that they can maintain their sovereignty and maximize existing growth potential.