Known as a place, a people, and a kingdom at various points in the second and first millennia BCE, Moab has long sustained the attention of archaeologists, philologists, and historians, in part because of its adjacent location to ancient Israel. The past 150 years of research in what is today west-central Jordan has proffered a significant corpus of evidence from the region's archaeological sites. However, a critical analysis of this evidence reveals significant gaps in knowledge that challenge attempts to narrate Moab's political, economic, and social history. This Element examines the evidence as well as the debates surrounding Moab's development and decline. This title is also available as open access on Cambridge Core.