The importance of contact and surface effects in modern engineering and their combined effects has led the organisers to reconvene this 13th International Conference, which covers Computational Methods and Experiments in Surface & Contact Mechanics including Tribology. Industry and society continues to demand an increased knowledge of surface treatment and contact mechanics and in-service behaviour of components subject to contact conditions. Modern society requires engineering systems that are capable of operating at conditions that use resources effectively. In terms of component durability, the understanding of advanced surface engineering wear, frictional and lubrication dynamics has never been so important. Current research is focused on searching for surface modification techniques which can increase the surface durability of materials. There exists an almost bewildering choice of surface treatments covering a wide range of thickness. Wear resistance is a system property, since the material of the work-piece acts against some other medium. Its relation to its environment – e.g. lubrication, speed of sliding/rotation – determines its tribological performance. The characteristics of the system reveal which surface engineering methods should be chosen and as a consequence it is essential to study the combination of surface treatment and contact mechanics. The aim of the conference is to encourage international cooperation amongst scientists and engineers and to exchange new ideas. It deals with fundamental and applied concepts in the interdisciplinary fields of surface and contact engineering, including tribology, in particular focusing on the interplay between applied physics, materials science and computational methods. The series began in Southampton (1993); continued in Ferrara and Milan (1995); Oxford and Madrid (1997); Stuttgart and Assissi (1999); Seville (2001); Crete (2003); Bologna (2005); the New Forest, home of the Wessex Institute (2007); the Algarve (2009); Malta (2011); Siena (2013) and Valencia (2015). The papers presented in these conferences are permanently archived in the eLibrary of the Wessex Institute (www.library.witpress.com), where they are easily accessible to the international scientific community.