This four-volume set LNCS 16412-16415 constitutes the proceedings of the 32nd International Conference on Multimedia Modeling, MMM 2026, held in Prague, Czech Republic, during January 29&31, 2026. The 148 full papers and 20 short papers presented in this book were carefully selected and reviewed from 291 valid submissions. These papers have been organized in the following sections: Regular Papers Special Session on Human-Centric Multimodal Behavior Analysis MOMST: Special Session on Multi Object Multi Sensor Tracking MARS-26: Special Session on Modelling Robustness and Security for Multimedia AI Demonstrations Video Browser Showdown