The Paris Dialogue on Archaeological Lidar brings together, for the first time, a broad cross-section of archaeologists who use landscape-scale airborne laser scanning, along with key scholars in archaeological method and theory and specialists from other disciplines such as information technology, remote sensing, ecology, remote sensing, and engineering. The aim is to cultivate an ongoing dialogue between the archaeological lidar community, including important input and perspectives from outside the discipline, with a view to identifying and addressing some of the challenges we face as lidar continues to transform landscape archaeology and eventually becomes a routine part of archaeological fieldwork.