GIS and Predictive Modelling introduces the roles of GIS-based predictive modelling of archaeological landscapes. The Element outlines the conceptual frameworks that inform GIS and predictive modelling, and presents the organisational structures and types of information that are typically used to build GIS and predictive models. To illustrate the key issues, we integrate GIS layers of cultural and environmental information in a novel case study from a coastal landscape in Gunai/Kurnai Country, southeastern Australia. We then apply predictive modelling to the study region, to examine the likely effects of predicted sea level rise on archaeological sites and landscapes along the Bass Strait coast and the shores of the Gippsland Lakes.