The fifth multidisciplinary workshop on advances in preferences handling had been held on August 16, 2010, Lisbon, Portugal, in conjunction with ECAI 2010. The workshop had been organized by Ulrich Junker, Jérôme Lang, and Patrice Perny, The program consisted of fourteen papers about topics such as hybrid preference representations, preference aggregation and voting, preferences and social networks, preference-based data retrieval, optimization under preferences, and application of preferences in recommender systems, multi-agent systems, and access-control systems.