African red slip ware, also African Red Slip or ARS, is a category of terra sigillata, or "fine" Ancient Roman pottery produced from the mid-1st century AD into the 7th century in the province of Africa Proconsularis, specifically that part roughly coinciding with the modern country of Tunisia and the Diocletianic provinces of Byzacena and Zeugitana. It is distinguished by a thick-orange red slip over a slightly granular fabric. Interior surfaces are completely covered, while the exterior can be only partially slipped, particularly on later examples.