Design practice in offshore geotechnical engineering has grown out of onshore practice, but the two application areas have tended to diverge over the last 30 years, driven partly by the scale of the foundation and anchoring elements used offshore, and partly by fundamental differences in construction and installation techniques. As a consequence offshore geotechnical engineering has grown as a speciality. The structure here follows a pattern that mimics the flow of a typical offshore project. In the early chapters, it provides a brief overview of the marine environment, offshore site investigation techniques and interpretation of soil behaviour. It proceeds to cover geotechnical design of piled foundations, shallow foundations and anchoring systems. Three topics are then covered which require a more multi-disciplinary approach: the design of mobile drilling rigs, pipelines, and geohazards. This title serves as a framework for undergraduate and postgraduate courses, and will appeal to professional engineers specialising in the offshore industry.