This report focuses on the pottery produced in Corinth in the Hellenistic period down to the time of that city's destruction by Mummius in 146 B.C. Imported pottery of the period, as well as Corinthian Hellenistic ware found elsewhere, has been deliberately excluded except as comparanda. However, in order to present the full history of the Hellenistic shapes the author traces their development from the earliest available Corinthian evidence, in some cases from the 6th century B.C. The shape series are further subdivided according to size categories. The catalogue is fully illustrated with profile drawings and photographs and two plans aid in identifying the deposits. The material is arranged under Wheelmade Fine Ware, Coarse Ware, Blister Ware and Moulded Relief Ware, and is followed by a discussion of the deposits and their chronology. A special section is devoted to the fine ware decorated in West Slope style.