This report presents an evaluation of the Third Session of the World Urban Forum (WUF III) that took place in Vancouver, Canada, from 19-23 June 2006. It was attended by 10,121 participants from 109 countries. The report has been prepared by UN-HABITAT, which was mandated by UN General Assembly (GA resolution 56/206), to organize the World Urban Forum with a view to strengthen the coordination of international support to the implementation of the Habitat Agenda. The report is the result of analysis of answers to the participant survey questionnaire. It is hoped that the assessment findings, lessons learned and recommendations will feed into programming and design; and improve the fourth session of the World Urban Forum to be held in Nanjing, China, in 2008.