Athenian Power in the Fifth Century BC provides a new analysis of the fifth-century BC Athenian empire, a central topic in ancient Greek history. Challenging orthodox approaches, which have been mostly empirical, monolithic and focused on Athens, the book argues that Athenian power was flexible and a matter of negotiation between the Athenians and their allies. It brings the allies to centre stage as active agents, and considers how the Athenian empire operated in different regions. The first three chapters focus on political, fiscal and religious interactions between the Athenians and their allies in Athenian contexts. The subsequent three chapters then offer studies of the empire in three different regions - the North Aegean, Rhodes, and the straits between the Aegean and the Black Sea - showing how the empire employed overlapping but differentiated regional strategies. This book is distinct from previous contributions in three key ways. First, it offers new perspectives on well-known Athenian epigraphic and literary sources, while also utilising different categories of non-Athenian evidence, including varied forms of material culture. Second, it provides sophisticated economic analysis. Third, the monograph makes use of critical historical comparison: with other imperial powers, with later Athenian power, and with the operation of fifth-century Athenian power in different regions.