This publication deals with the entire coinage, silver and bronze, of the Opountian Lokrians in Central Greece from the early fourth century BC to the later first century AD. Introductory chapters deal with the history and mythology of the region and the various forms of ethnic found on the coins and in literary and epigraphic sources. They are followed by full die-studies of all series in both metals and discussion of their dates and significance. The silver, belonging mostly if not entirely to the fourth century BC, comprises an abundant series of staters of high artistic quality, drachms, triobols, and smaller fractions in several denominations. The bronze is divided into 42 groups, ranging in date from the mid-4th century BC to AD c.68/69.