The large floods that hit Southeast Asia are a natural phenomenon that often occurs as a result of very high rainfall, river flooding, or wetlands that often overflow. Countries such as Malaysia, Indonesia, Thailand and the Philippines often experience significant impacts from these disasters, especially during the rainy season. One of the main triggers for flooding is climate change which causes the intensity of rain to increase. For example, unexpected rainfall often triggers flooding in urban areas, causing road infrastructure, bridges and buildings to be submerged. In addition, deforestation and unplanned infrastructure development increase the risk of flooding because groundwater absorption decreases. In the latest case, massive floods devastated southern Thailand, causing thousands of people to flee. Major rivers overflowed, submerging homes and schools and destroying agricultural fields. Apart from the physical impact, this disaster also causes disruption to the local economy, hampers access to basic services, and affects public health due to the increased risk of disease. Not only Thailand, floods in Indonesia, such as what happened in Jakarta, are also in the spotlight. The capital faces annual flooding due to poor drainage systems and rising sea levels. About a third of the capital lies below sea level, and with each flood, the impact gets worse, forcing the government and citizens to look for long-term solutions. In the Philippines, flooding often occurs as a direct impact of tropical cyclones. This flood is not only caused by massive rainfall but also by the geographical location which makes this country prone to natural disasters. Flooding, combined with landslides, damages infrastructure and causes major economic losses. To overcome this problem, many countries in the Southeast Asian region are strengthening early warning systems for disasters, improving drainage infrastructure, and implementing reforestation programs. Apart from that, increasing public awareness about risk mitigation is also very important. Education regarding safe ways to deal with flood disasters, evacuation and self-rescue must be the main focus. Flood risk management is very important in order to face future challenges. Collaboration between government, communities and non-governmental organizations is needed to build resilience to floods. Environmentally friendly technologies can also be used to reduce the effects of climate change and ensure that society is prepared to face possible future disasters. Thus, good urban planning, efficient water resource management, and active community participation can be the key to minimizing the impact of the major floods that hit Southeast Asia.