This book includes comprehensive post-conference proceedings from the referee RoboCup International Symposium 13, held in Graz, Austria, in June / July, 2009 - which represents the core meeting for the presentation and discussion of the scientific contribution of the various fields of research related to all divisions RoboCup (RoboCupSoccer, RoboCupRescue, RoboCup @ Home, and RoboCupJunior). 22 revised full papers and 17 revised poster papers presented were reviewed and selected from 112 submissions.