The Entropy 2026: Exploring Complexity and Information in Science will take place from July 1 to 3, 2026, in Barcelona, Spain. The international conference will bring together researchers, scientists, academicians, and industry professionals working in the fields of information theory, statistical physics, quantum computing, thermodynamics, artificial intelligence, and complex systems. The event will feature keynote presentations, technical sessions, poster sessions, and networking opportunities focused on emerging research in entropy, data science, stochastic processes, non-equilibrium systems, network science, and applications of entropy in science and engineering.