Late Roman D Ware (or 'Cypriot Red Slip Ware') is one of the most widespread fine wares of the late antique Mediterranean. Its hypothetical origin in Cyprus is challenged by the discovery since 2008 of kilns in Turkey whose products include the whole of this ware's standard repertoire. This paper provides the first detailed account of the discovery of a network of seven production centres located near Gebiz, 32km northeast of Antalya and close to the Kestros river (Aksu cayi) and its tributary the Kucukaksu river, from where these products together with agricultural goods would have been traded inland and downstream to Perge and beyond. Results of the field survey during which these kilns were discovered are presented, together with a discussion of their far-reaching implications. The results establish southern Anatolia, and specifically the margins of the Pamphylian plain, as the only certainly identified production area of this ware. By challenging the origin traditionally accepted for 'Cypriot Red Slip Ware', which is distributed throughout the eastern Mediterranean, the discovery of these kilns raises questions also about other less archaeologically distinct Anatolian goods which also are likely to have been involved in this exchange network at both local and international scales.