This book constitutes the proceedings of the 15th International Workshop on Computational Logic in Multi-Agent Systems, CLIMA XV, held in Prague, Czech Republic, in August 2014.The 12 regular papers were carefully reviewed and selected from 20 submissions.

On the Complexity of Two-Agent Justification Logic.- Fair Allocation of Group Tasks According to Social Norms.- A Conceptual Model for Situated Artificial Institutions.- Evolving Bridge Rules in Evolving Multi-Context Systems.- Enumerating Extensions on Random Abstract-AFs with ArgTools, Aspartix, ConArg2, and Dung-O-Matic.- Automated Planning of Simple Persuasion Dialogues.- Empirical Evaluation of Strategies for Multiparty Argumentative Debates.- How to Build Input/Output Logic.- The Problem of Judgment Aggregation in the Framework of Boolean-Valued Models.- A Behavioral Hierarchy of Strategy Logic.- Synthesis and Verification of Uniform Strategies for Multi-agent Systems.- Partial Information and Uniform Strategies.