Despite being the largest archaeological site in the Lower Halil-rud River Basin area, the rich surface materials of the Sasanian period of Tomm-e Kharg remain unpublished. The present article deals with the typo-chronology of the Sasanian ceramic assemblage of this site in the Roudbar-e Jonoub region. Pottery is of the less-developed areas of research in Sasanian Studies. This gap is especially noticeable when considering that the late antique archaeological landscapes of the region are chiefly overlooked. Therefore, the study of this collection is significant in the field. Data were collected through archival and field techniques and analysed via an analytic-descriptive (qualitative) method. Main questions of the article are: How is it possible to determine the regional characteristics of Sasanian pottery in Southern Kerman based on the available materials? And how can one reconstruct the (inter-)regional interactions of the Kharg population during this period? The study assumes that examining the Kharg assemblage improves our understanding of such features, and that its typology and comparison reveal the socio-economic links of the community. To accomplish this, the collection was studied according to the principles of systematic archaeological survey and sampled across the surface of the site in 162 squares, each measuring 100 m² in area, using a simple random sampling method. Next, the shards were classified, typologized, and compared. It is therefore claimed that FOPW represents a local tradition and is one of the main classes of Sasanian pottery at Tomm-e Kharg. Alongside this ware, TURQ and some types of plain ware signify the interregional interactions of the Kharg society during that era. Despite the local traits, the study revealed that the Lower Halil-rud River Basin area was part of an economic network that extended beyond the Kerman region encompassing the shorelands and hinterlands of the Persian Gulf and Oman Sea.