Welcome to the official website of the 2025 9th International Conference on Intelligent Systems, Metaheuristics & Swarm Intelligence (ISMSI 2025). The conference, co-organized by India International Congress on Computational Intelligence (IICCI, www.iicci.in) and Tokyo Metropolitan University, will be held in Tokyo, Japan during April 26-28, 2025. The main objective of ISMSI 2025 is to present the latest research and results of scientists related to Intelligent Systems, Metaheuristics & Swarm Intelligence topics. This conference provides opportunities for the delegates to exchange new ideas face-to-face, to establish business or research relations as well as to find global partners for future collaborations. We hope that the conference results will lead to significant contributions to the knowledge in these up- to- date scientific fields.