The International Conference on Photonic, Electronic and Atomic Collisions (ICPEAC 2023) is expected to bring together more than 500 scientists from all over the world whose research is concerned with collisions involving photons, electrons, atoms, ions, molecules, clusters, surfaces, exotic particles, and ultracold matter and with attosecond and strong-field atomic and molecular physics and related areas. An excellent slate of invited speakers has been assembled and they plan for ICPEAC 2023 to be held in person, and are excited to host the meeting in Canada’s capital, a city with a rich cultural life and many attractions, which will delight you with its welcoming spirit and charm.