This book constitutes the refereed proceedings of the 23rd International Conference on Advances in Mobile Computing and Multimedia Intelligence, MoMM 2025, held in Matsue, Japan, during December 8–10, 2025.

The 10 full papers and 6 short papers included in this book were carefully reviewed and selected from 31 submissions. They were organized in topical sections as follows: Mobile and Wearable Systems; Security and Trust in Mobile Environments; and Immersive and Context-Aware Computing.