These proceedings contain the refereed Invited and Full Contributed papers from the COMPSTAT conference.Statistical computing provides the link between statistical theory and applied statistics. The scientific programme of COMPSTAT ranges over all aspects of this link, from the development and implementaion of new computer-based statistical methodology through to innovative applications and software evaluation. The programme should appeal to anyone working in statistics and using computers, whether in universities, industrial companies, research institutes or as software developers.The Proceedings thus provide a broad overview of all currently-active research areas in statistical computing.