The 9th World One Health Congress is a leading international forum addressing major One Health challenges at the intersection of human, animal, and environmental health. It fosters dialogue on critical issues such as antimicrobial resistance, ecosystem health, science-policy integration, and global health security. The Congress features parallel tracks, keynote lectures, research presentations, and networking opportunities that bring together scientists, policymakers, and practitioners from around the world. Through open calls for abstracts, session concept notes, and workshops, the event highlights cutting-edge research and innovative solutions that support the implementation of One Health approaches globally.