The disastrous effects of global warming urge developed and developing countries to invest in Information Technology solutions to reduce flood risks. More recently, flood risk and hazard mapping system is slowly adopted in the Philippines, a developing country. However, acceptance of flood risk and hazard mapping system in the Philippines is underrepresented in the literature. Hence, this paper aims to present users’ acceptance of flood risk and hazard mapping system by using the Technology Acceptance Model, through a survey conducted among different users. Results of the study show an affirmative acceptance of flood risk and hazard mapping system. Also, the relationships between perceived usefulness and behavioral intention, perceived ease of use and behavioral intention, perceived ease of use and perceived usefulness, relevance and perceived usefulness, domain knowledge and perceived usefulness, self-efficacy and perceived ease of use, computer literacy and perceived ease of use are all observed. This study contributes by providing the first empirical evidence of investigation on acceptance of flood risk and hazard mapping system in the Philippines.