This book constitutes the refereed proceedings of the 9th International Conference on Cognitive Computing, ICCC 2025, Held as Part of the Services Conference Federation, SCF 2025, held in Hong Kong, during September 27–30, 2025. The 5 full papers and 2 short papers included in this book were carefully reviewed and selected from 11 submissions. They were organized in topical sections as follows: research track; application and industry track; and short paper track.